Rock samples taken from the remains of an asteroid about : GMAT Sentence Correction (SC)
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# Rock samples taken from the remains of an asteroid about

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Senior Manager
Joined: 18 Sep 2009
Posts: 359
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Rock samples taken from the remains of an asteroid about [#permalink]

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02 Mar 2012, 14:20
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Rock samples taken from the remains of an asteroid
about twice the size of the 6-mile-wide asteroid that
eradicated the dinosaurs has been dated to be 3.47
billion years old and thus is evidence of the earliest
known asteroid impact on Earth
(A) has been dated to be 3.47 billion years old and
thus is
(B) has been dated at 3.47 billion years old and thus
(C) have been dated to be 3.47 billion years old and
thus are
(D) have been dated as being 3.47 billion years old
and thus
(E) have been dated at 3.47 billion years old and
thus are
can anybody tell me how to eliminate middlemen in this sentence to find subject and verb.
'I identified the following:
from the remains, of an asteroid,about twice,of the 6-mile-wide asteroid. what about "the size,that eradicted". Is this correct . please expain
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Manager
Joined: 01 Nov 2010
Posts: 181
Location: Zürich, Switzerland
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Re: rock samples [#permalink]

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04 Mar 2012, 05:14
Quote:
Rock samples taken from the remains of an asteroid
about twice the size of the 6-mile-wide asteroid that
eradicated the dinosaurs has been dated to be 3.47
billion years old and thus is evidence of the earliest
known asteroid impact on Earth
(A) has been dated to be 3.47 billion years old and
thus is
(B) has been dated at 3.47 billion years old and thus
(C) have been dated to be 3.47 billion years old and
thus are
(D) have been dated as being 3.47 billion years old
and thus
(E) have been dated at 3.47 billion years old and
thus are
can anybody tell me how to eliminate middlemen in this sentence to find subject and verb.
'I identified the following:
from the remains, of an asteroid,about twice,of the 6-mile-wide asteroid. what about "the size,that eradicted". Is this correct . please expain

"The size" is not the subject used here, it is used as "twice the size" which refers to the asteroid. "That eradicated" refers to the asteroid and not to the main subject of the sentence which is - "Rock samples".

IMO Answer C
Senior Manager
Joined: 18 Sep 2009
Posts: 359
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Kudos [?]: 421 [0], given: 2

Re: rock samples [#permalink]

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09 Mar 2012, 20:56
Hai saarang

I know that " rock samples" is the subject of the sentence. I need some perfection in eliminating middlemen to find the subject and verb of a sentence. " the size" is between "about twice" and "of the 6-mile asteroid". how should I eliminate " the size".

The method i followed is "about twice the size of the 6-mile-wide asteroid " is a prepositional phrase. Is this correct.

The correct answer is E not C. "dated at" is the correct idiom

please explain
Senior Manager
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Concentration: Operations, Strategy
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Re: rock samples [#permalink]

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14 Mar 2012, 22:55
TomB wrote:
Hai saarang

I know that " rock samples" is the subject of the sentence. I need some perfection in eliminating middlemen to find the subject and verb of a sentence. " the size" is between "about twice" and "of the 6-mile asteroid". how should I eliminate " the size".

The method i followed is "about twice the size of the 6-mile-wide asteroid " is a prepositional phrase. Is this correct.

The correct answer is E not C. "dated at" is the correct idiom

please explain

let me try:

Rock samples taken from the remains of an asteroid
about twice the size of the 6-mile-wide asteroid that
eradicated the dinosaurs
has been dated to be 3.47
billion years old and thus is evidence of the earliest
known asteroid impact on Earth
(A) has been dated to be 3.47 billion years old and
thus is
(B) has been dated at 3.47 billion years old and thus
(C) have been dated to be 3.47 billion years old and
thus are
(D) have been dated as being 3.47 billion years old
and thus
(E) have been dated at 3.47 billion years old and
thus are

Read the sentence removing the yellowed part. those are craps.
all part in red are wrong with respect to idioms and subject verb agreement.

E is correct.

hope this helps..!!
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Re: rock samples   [#permalink] 14 Mar 2012, 22:55
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# Rock samples taken from the remains of an asteroid about

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