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Re: Around the World in 80 Questions (Day 1): The quartzite found in the [#permalink]
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(A) believed to be Refers to mineral deposits
(B) and it is believed to have been have been..... since, Correct
(C) and that is believed to be what 'that' refers to? quartzite is believed?
(D) which was, it is believed, Cannot refer back to the far away quartzite
(E) which are believed to be Refers to mineral deposits

(B)
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Re: Around the World in 80 Questions (Day 1): The quartzite found in the [#permalink]
Bunuel wrote:
The quartzite found in the Santa Ana Mountains is considered one of the most pristine Paleozoic mineral deposits, believed to be metamorphosed since the deposition of the Triassic era.

(A) believed to be
(B) and it is believed to have been
(C) and that is believed to be
(D) which was, it is believed,
(E) which are believed to be


 


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(A) believed to be
(B) and it is believed to have been

Option A and B are both grammatically correct but A is more concise than B hence considering A to be correct.


(C) and that is believed to be
This option is grammatically incorrect. The conjunction "and" requires a complete sentence to follow, but "that is believed to be" is not a complete sentence.

(D) which was, it is believed,
This option is grammatically incorrect and awkwardly phrased. The phrase "it is believed" is inserted in a way that disrupts the flow of the sentence.

(E) which are believed to be
This option is grammatically incorrect. The pronoun "which" should refer back to the singular noun "quartzite," so the verb "are" is incorrect. It should be "is."

(Reposting this as the old account is deactivated making the post null and void, pls do not report this post)
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Re: Around the World in 80 Questions (Day 1): The quartzite found in the [#permalink]
Bunuel wrote:
The quartzite found in the Santa Ana Mountains is considered one of the most pristine Paleozoic mineral deposits, believed to be metamorphosed since the deposition of the Triassic era.

(A) believed to be
(B) and it is believed to have been
(C) and that is believed to be
(D) which was, it is believed,
(E) which are believed to be


 


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I was able to eliminate A because of the usage of v-ed just after deposits, and imo this usage distorts the meaning as quartzite and not deposits were metamorphosed.
I removed D because which is referring to deposits which leads to S-V plurality issue.
Removed E because usage of which means that deposits were metamorphosed. But imo that meaning is illogical.
I am confused between B & C. I am not how to eliminate one of them on the basis of the given differences.
Please help me! :roll:
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Re: Around the World in 80 Questions (Day 1): The quartzite found in the [#permalink]
The correct answer is: (C) and that is believed to be

The sentence would read: "The quartzite found in the Santa Ana Mountains is considered one of the most pristine Paleozoic mineral deposits, and that is believed to be metamorphosed since the deposition of the Triassic era."
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Around the World in 80 Questions (Day 1): The quartzite found in the [#permalink]
Since can indicate either time or cause/effect.

If it indicates time - Present perfect continuous is used.

Here, it indicates time, therefore, have been.....

Option B
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