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Around the World in 80 Questions (Day 1): Many of them dug during the 17 Jul 2023, 09:22
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Answer D. Explanation - A isn't properly arranged. B could have been my second guess as the tone somewhat seems right. C are dotting the lines seems absurd. E 'are dug' should have been 'were dug'

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Around the World in 80 Questions (Day 1): Many of them dug during the 17 Jul 2023, 09:26
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Bunuel
Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.
(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.
(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.
(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.
(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which aredug during the Greenwood copper boom a century ago.


 


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The hills... are dotted.
mines are dug.
above two logic leave only option E.
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Around the World in 80 Questions (Day 1): Many of them dug during the 17 Jul 2023, 09:34
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A, C, D and E are all satisfying choices and we keep them,
but B just sounds better and therefore it's our answer
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Bunuel
Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.
(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.
(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.
(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.
(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which aredug during the Greenwood copper boom a century ago.


 


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IMO it is between C and D, and the correct answer should be D

(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

This option is incorrect as the hills were not dug; copper mines were.

(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.

Same problem as in A

(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.

This one is good, but present continuous seems to be off here. Eliminate.

(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.

In this option, 'them' could potentially be a problem, but the closest plural noun here is 'mines', and there seems to be no ambiguity that 'them' refers to 'mines'.

(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which aredug during the Greenwood copper boom a century ago.

'are dug' is incorrect because it happened a century ago.
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Around the World in 80 Questions (Day 1): Many of them dug during the 17 Jul 2023, 09:38
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Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines. (Many of them dug incorrectly refers to the hills instead of copper Mines)
(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.Same problem as (A)
(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.Are dotting the hills of Arizona is incorrect , dot the hills to the east of Death Valley would be better
(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.Correct Answer
(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which are dug during the Greenwood copper boom a century ago.most of which are ... tense issue , were corrects this
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Around the World in 80 Questions (Day 1): Many of them dug during the 17 Jul 2023, 09:39
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(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.
This sentence is grammatically incorrect because it lacks a clear subject in the first clause

(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.
The placement of the phrase "dug during the Greenwood copper boom a century ago" at the beginning of the sentence is slightly confusing.

(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.
The use of 'are dotting' is wrong here

(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.
This is correct

(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which are dug during the Greenwood copper boom a century ago.
"are dug" should be "were dug" to correctly use the past tense.
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Around the World in 80 Questions (Day 1): Many of them dug during the 17 Jul 2023, 09:41
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Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines. - modifier error

(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines. - modifier error

(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona. - correct

(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago. - the hills are still dotted

(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which aredug during the Greenwood copper boom a century ago. - the hills are still dotted
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(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.
-Suspected incorrect.
Rationale: Bracketing commas used. When removing the statement between the bracketing commas, it appears to be impact the sentence structure. This information could not be omitted without impacting the sentence.

(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.
-Suspected incorrect.
Rationale: Bracketing commas used. When removing the statement between the bracketing commas, it appears to be impact the sentence structure. This information could not be omitted without impacting the sentence.

(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.
-Suspected correct.
Rationale: Bracketing commas used. When removing the statement between the bracketing commas, it does not appear to impact the sentence structure. The information could be omitted.

(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.
-Suspected incorrect.
Rationale: Bracketing commas used. When removing the statement between the bracketing commas, it appears to be impact the sentence structure. This information could not be omitted without impacting the sentence.

(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which aredug during the Greenwood copper boom a century ago.
-Suspected incorrect.
Rationale: Bracketing commas used. When removing the statement between the bracketing commas, it appears to be impact the sentence structure. This information could not be omitted without impacting the sentence.
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Bunuel
Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.
(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.
(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.
(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.
(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which aredug during the Greenwood copper boom a century ago.


 


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Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

The modifier "many of them dug" should modify "copper mines". Here, it's modifying "hills". Why do you want to dig hills when you have copper mines around :dontknow: Eliminate A.

(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.

Option B faces the same issue as in A.

(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.

In option C, it seems Copper mines performing the action of dotting the hills. Instead, the hills are dotted with 100s of mines. Moreover, the action of dotting may or may not be happening at this very moment so present continuous is not required. Eliminate Option C.

(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.

Perfect. "Cu mines" is next to "most of them dug" , "Arizona" is next to "The hills to the east of Death Valley". Moreover, the sentence makes sense i.e. the hills are dotted with 100s of Cu mines.

(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which aredug during the Greenwood copper boom a century ago.

Run on error. "Most of which are..." We don't need verb "are" as it creates run on error. 2 independent sentences can't be placed together with just "comma". Eliminate Option E.
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Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

its clear the sentence is talking about the copper mines which have been dug during a certain era. In the sentence's current state, "them" can also refer to hills. same goes for option B. both option A and B do not eliminate the ambiguity regarding THEM pronoun. So, if we find a better option we can drop these 2.

Option C eliminates the ambiguity and correctly points to the mines dotting along the hills. So we hold on to C, and we eliminate A and B

Option D is as good as option C except that in option D, them might refer to hills, since its the nouns preceding mines. This is not wrong per se but we have a better choice with option C as all ambiguity is eliminated. So, we eliminate D and hold on to C

Option E uses "are dug" which is present perfect tense. The mines are still not being dug, so eliminate E

Therefore answer is C
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Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.
- the phrase "Many of them" could refer to the hills, the copper mines, or the people who dug the mines.

(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.
- the phrase "Many of them" could refer to the hills, the copper mines, or the people who dug the mines.

(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.
- Incorrect usage of "are dotting". It is in the present tense, but the phrase "during the Greenwood copper boom a century ago" is in the past tense.

(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.
- Correct!

(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which are dug during the Greenwood copper boom a century ago.
- The phrase "most of which are dug during the Greenwood copper boom a century ago" is awkward and grammatically incorrect. Also, "are" is incorrect tense form.
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(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.
This states that the hills were dug, and not the mines. Hills cannot logically be dug.

(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.
Same issue as A and, "with many hundreds" is wordy and a better alternative is "with hundreds."

(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.
Removing the subordinate clause one is left with "Hundreds of copper mines are dotting the hills..." This does not make sense. It would be better to say that the hills are dotted with.

(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.
Clear, concise and corrects the initial errors.

(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which aredug during the Greenwood copper boom a century ago.
There is an issue with tense in: "most of which are dug". "Are" cannot be used as this is something that occurred in the past.

Answer D
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Bunuel
Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.
(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.
(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.
(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.
(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which aredug during the Greenwood copper boom a century ago.

 


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(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

Incorrect placement of modifier. The hills were not dug during Greenwood copper boom.

(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.

Incorrect placement of modifier. The hills were not dug during Greenwood copper boom.

(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.

The use of present continuous tense gives a meaning that the copper mines are dotting the hills as we speak. Illogical.

(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.

Correct. The modifiers are placed correctly and the meaning is clear.

(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which aredug during the Greenwood copper boom a century ago.

Run on sentence. Two Independent clauses are connected via a comma. Eliminate

IMO D
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Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.
Many of them dug during the Greenwood copper boom a century ago modifier is NOT modifying the hills to the east of Death Valley, Arizona
Incorrect.

(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.
The hills to the east of Death Valley, Arizona were NOT Dug during the Greenwood copper boom a century ago
Meaning of the sentence is NOT correct.

(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.
Hundreds of copper mines are dotting the hills to the east of Death Valley, Arizona.
Is NOT a correct sentence. whereas
the hills to the east of Death Valley, Arizona are dotted with hundreds of copper mines
is correct.

(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.
most of which are dug is the correct usage

(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which are dug during the Greenwood copper boom a century ago.
Correct

IMO E
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(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.
Incorrect: century ago -the hills not right modifier

(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.
incorrect: same modifier issue

(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.
incorrect: past but using present tense

(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.
Correct


(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which are dug during the Greenwood copper boom a century ago.
incorrect: most of which
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Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.IncorrectNon-sensical

(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.Incorrectmakes no sense. It seems like two phrases modifying the noun "Arizona"

(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona. Incorrect[b]This sentence a set of phrases[/b]

(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.CorrectMakes sense

(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which are dug during the Greenwood copper boom a century ago.Incorrect The last one" most of-------" modify Arizona which is quite far off
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Around the World in 80 Questions (Day 1): Many of them dug during the 17 Jul 2023, 11:06
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Bunuel
Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.
(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.
(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.
(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.
(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which aredug during the Greenwood copper boom a century ago.


 


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Eliminations:
A=> There is no subject before them which it can refer to
B=> No relation between dug and copper mines, changes the meaning of the statement given
D=> "them" here can refer to either hills or copper mines. Ambiguous
E=> "which" here can refer to either hills or copper mines. Ambiguous
IMO Option C
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Around the World in 80 Questions (Day 1): Many of them dug during the 17 Jul 2023, 11:09
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Bunuel
Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.
(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines.
(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.
(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.
(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which are dug during the Greenwood copper boom a century ago.


 


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A & B are out due to incorrect reference of the modifier to the hills.

C is out because of usage of present continuous tense.

E out due to usage of simple present tense while presenting a case of century ago.

D is correct.
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Around the World in 80 Questions (Day 1): Many of them dug during the 17 Jul 2023, 11:13
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Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.

(A) Many of them dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines.
Them here refer to the subject "the hills", however meaning requires mines are dug
(B) Dug during the Greenwood copper boom a century ago, the hills to the east of Death Valley, Arizona, are dotted with many hundreds of copper mines
Dug here modifies the hills rather than copper mines
(C) Hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago, are dotting the hills to the east of Death Valley, Arizona.
Them here refer to mines but the active voice change the meaning of the sentence as if mines are dotting the hills rather than hills are dotted (meaning marked) with
mines
(D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.
Answer. Them here refer to closest noun mines and refer to the action being dug done during a century ago and seems correct
(E) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of which aredug during the Greenwood copper boom a century ago.
Here it seems there are two sentences which are connected by comma rather than a FANBOYS conjunction. Hence it seems incorrect
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Around the World in 80 Questions (Day 1): Many of them dug during the 17 Jul 2023, 11:25
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The correct response is, (D) The hills to the east of Death Valley, Arizona, are dotted with hundreds of copper mines, most of them dug during the Greenwood copper boom a century ago.

This sentence correctly communicates the intended meaning of this sentence. It has a logical flow, as it is clear that it is the hills that are dotted with hundreds of copper mines, and that most of these copper mines were dug during the boom. It leaves no room for confusion about whether the hills or the mines were dug. This sentence is also equipped with all of the proper modifiers and tenses.
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