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Despite their numerous attempts to do so, scientists have

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Senior Manager
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Despite their numerous attempts to do so, scientists have [#permalink] New post 08 Mar 2013, 13:29
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Question Stats:

75% (01:35) correct 24% (00:54) wrong based on 102 sessions
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] New post 08 Mar 2013, 14:57
Expert's post
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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Senior Manager
Senior Manager
User avatar
Status: struggling with GMAT
Joined: 06 Dec 2012
Posts: 314
Location: Bangladesh
Concentration: Accounting
GMAT Date: 04-06-2013
GPA: 3.65
Followers: 7

Kudos [?]: 72 [0], given: 46

Re: Despite their numerous attempts to do so, scientists have [#permalink] New post 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] New post 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.
Re: Despite their numerous attempts to do so, scientists have   [#permalink] 11 Feb 2014, 05:51
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