Despite their numerous attempts to do so, scientists have : GMAT Sentence Correction (SC)
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# Despite their numerous attempts to do so, scientists have

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Despite their numerous attempts to do so, scientists have [#permalink]

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08 Mar 2013, 13:29
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Despite their numerous attempts to do so, scientists have not been able to sustain a controlled nuclear fusion reaction.
(A)their numerous attempts to do so, scientists have not been able to
(B)their numerous attempts to do it, scientists have not been able to
(C)them numerously attempting to do so, scientists have not been able to
(D)their numerously attempting to do so, scientists cannot
(E)their numerous attempt to do so, scientists were not able to
Need explanation
[Reveal] Spoiler: OA

Last edited by mun23 on 15 Mar 2013, 05:20, edited 1 time in total.
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Re: Despite their numerous attempts to do so, scientists have [#permalink]

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08 Mar 2013, 14:57
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Despite their numerous attempts to do so, scientists have not been able to sustain a controlled nuclear fusion reaction.

(A)their numerous attempts to do so, scientists have not been able to

Correct

(B)their numerous attempts to do it, scientists have not been able to

It doen't have a clear antecedent

(C)them numerously attempting to do so, scientists have not been able to

attempting is wrong because the right noun is attempts

(D)their numerously attempting to do so, scientists cannot

As C

(E)their numerous attempt to do so, scientists were not able to

attempt is singular and doesn't agree with their

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Manager
Status: struggling with GMAT
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Re: Despite their numerous attempts to do so, scientists have [#permalink]

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15 Mar 2013, 05:41
carcass wrote:
Despite their numerous attempts to do so, scientists have not been able to sustain a controlled nuclear fusion reaction.

(A)their numerous attempts to do so, scientists have not been able to

Correct

(B)their numerous attempts to do it, scientists have not been able to

It doen't have a clear antecedent

(C)them numerously attempting to do so, scientists have not been able to

attempting is wrong because the right noun is attempts

(D)their numerously attempting to do so, scientists cannot

As C

(E)their numerous attempt to do so, scientists were not able to

attempt is singular and doesn't agree with their

In option E here past form is used & in option A present perfect form is used.in option E If it was written "their numerous attempts to do so,scientists were not able to
then what would happen?
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Re: Despite their numerous attempts to do so, scientists have [#permalink]

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11 Feb 2014, 05:51
carcass wrote:
Despite their numerous attempts to do so, scientists have not been able to sustain a controlled nuclear fusion reaction.

(A)their numerous attempts to do so, scientists have not been able to

Correct

(B)their numerous attempts to do it, scientists have not been able to

It doen't have a clear antecedent

(C)them numerously attempting to do so, scientists have not been able to

attempting is wrong because the right noun is attempts

(D)their numerously attempting to do so, scientists cannot

As C

(E)their numerous attempt to do so, scientists were not able to

attempt is singular and doesn't agree with their

I feel like I should know this, but does the antecedent always have to come before the pronoun? Here I assumed the it was referring to the reaction which is the only singular noun in the second part of the sentence. Hence went with B instead of A.
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Re: Despite their numerous attempts to do so, scientists have [#permalink]

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27 Jun 2016, 17:07
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Despite their numerous attempts to do so, scientists have [#permalink]

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27 Jun 2016, 22:55
carcass wrote:
Despite their numerous attempts to do so, scientists have not been able to sustain a controlled nuclear fusion reaction.

(A)their numerous attempts to do so, scientists have not been able to

Correct

(B)their numerous attempts to do it, scientists have not been able to

It doen't have a clear antecedent

(C)them numerously attempting to do so, scientists have not been able to

attempting is wrong because the right noun is attempts

(D)their numerously attempting to do so, scientists cannot

As C

(E)their numerous attempt to do so, scientists were not able to

attempt is singular and doesn't agree with their

I am always confused with singular and pural, here I marked option E, just because Attempts, which is acting as a verb in this sentence, is singular.

Can you please clarify, attempts is singular or attempt >>>????
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Re: Despite their numerous attempts to do so, scientists have [#permalink]

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27 Jun 2016, 23:02
Despite their numerous attempts to do so,

In this subordinate clause, can some one please help me to locate subject and verb.
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Re: Despite their numerous attempts to do so, scientists have [#permalink]

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29 Jun 2016, 01:49
prakhar39 wrote:
Despite their numerous attempts to do so,

In this subordinate clause, can some one please help me to locate subject and verb.

There is no subordinate clause in this case. "Despite their numerous attempts to do so" is a phrase since there is no verb in this part - "attempts" is a noun here.
Re: Despite their numerous attempts to do so, scientists have   [#permalink] 29 Jun 2016, 01:49
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# Despite their numerous attempts to do so, scientists have

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