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cano
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cano
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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OA is E.
Source: Kaplan.
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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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C is wordy. No grammar errors.
C) attempted to prove but could not prove

bibha
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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