Planet X : GMAT Sentence Correction (SC)
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# Planet X

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Joined: 19 Feb 2010
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22 May 2010, 05:57
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Question Stats:

25% (00:00) correct 75% (00:20) wrong based on 8 sessions

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While for years several scientists attempted but could not prove that so-called Planet X was a tenth planet in our solar system, later scientists convincingly disproved the possibility.
(A) attempted but could not
(B) attempted but were unable
(C) attempted to prove but could not
(D) having attempted to prove, could not
(E) attempted to but could not

Last edited by cano on 22 May 2010, 18:28, edited 1 time in total.
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Re: Planet X [#permalink]

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22 May 2010, 06:22
Ill go with E

C being the next close option
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Re: Planet X [#permalink]

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22 May 2010, 06:30
IMO A.

Although attempted to is the correct usage, it still misses an immediate infinite to + verb (present tense).

What's the OA?

cano wrote:
While for years several scientists attempted but could not prove that so-called Planet X was a tenth planet in our solar system, later scientists convincingly disproved the possibility.
(A) attempted but could not
(B) attempted but were unable
(C) attempted to prove but could not
(D) having attempted to prove, could not
(E) attempted to but could not

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Re: Planet X [#permalink]

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23 May 2010, 07:32
cano wrote:
While for years several scientists attempted but could not prove that so-called Planet X was a tenth planet in our solar system, later scientists convincingly disproved the possibility.
(A) attempted but could not
(B) attempted but were unable
(C) attempted to prove but could not
(D) having attempted to prove, could not
(E) attempted to but could not

IMO A,C and E are close contenders.

A) While for years several scientists attempted prove that so-called Planet X was a...after removing "but could not" >>> Doesn't look gud

C) While for years several scientists attempted to prove prove that so-called Planet X was a...after removing "but could not" >>> Doesn't look gud

E) While for years several scientists attempted to prove that so-called Planet X was a...after removing "but could not" >>> Looks OK.

Though kinda tough question.. What's the source and OA...?
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Re: Planet X [#permalink]

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23 May 2010, 17:31
OA is E.
Source: Kaplan.
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Re: Planet X [#permalink]

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24 Jun 2010, 23:25
C looks awkward but i can't find any grammatical error in it. Could someone please explain why C is wrong?
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Re: Planet X [#permalink]

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25 Jun 2010, 03:07
C is wordy. No grammar errors.
C) attempted to prove but could not prove

bibha wrote:
C looks awkward but i can't find any grammatical error in it. Could someone please explain why C is wrong?

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Re: Planet X   [#permalink] 25 Jun 2010, 03:07
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# Planet X

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