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# The ivory-billed woodpecker, once the largest woodpecker in

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The ivory-billed woodpecker, once the largest woodpecker in [#permalink]

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09 Nov 2012, 11:15
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Question Stats:

79% (00:28) correct 21% (00:27) wrong based on 182 sessions

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The ivory-billed woodpecker, once the largest woodpecker in North America at a striking 20 inches tall, has moved in and out of the extinct category, with scientists consistently unable to find solid proof for the bird to still exist.

(A) for the bird to still exist
(B) for the bird as still existing
(C) for the bird's continued existence
(D) that the bird still exists
(E) of the bird and its continued existence

OA after some discussion.

Cheers
[Reveal] Spoiler: OA

Last edited by JarvisR on 23 Jun 2015, 21:27, edited 1 time in total.
formatted the Q

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Re: The ivory-billed woodpecker, once the largest woodpecker in [#permalink]

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09 Nov 2012, 15:25
The ivory-billed woodpecker... has moved in and out of the extinct category, with scientists consistently
unable to find solid proof THAT the bird (the ivory-billed woodpecker) still exists.

IMO
[Reveal] Spoiler:
D
it is.
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Re: The ivory-billed woodpecker, once the largest woodpecker in [#permalink]

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09 Nov 2012, 20:48
gmatbull wrote:
The ivory-billed woodpecker... has moved in and out of the extinct category, with scientists consistently
unable to find solid proof THAT the bird (the ivory-billed woodpecker) still exists.

IMO
[Reveal] Spoiler:
D
it is.

Hi - Have u seen from any GMAT source that proof for is wrong idiom - just to confirm
And only proof of and proof that is correct idiom?

cheers

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Re: The ivory-billed woodpecker, once the largest woodpecker in [#permalink]

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10 Nov 2012, 00:09
A is nonsensical. It seems to convey the meaning that scientists are unable to find solid proof, proof which would enable the bird to exist. Similar to saying something like the social activists were unable to find a reason for the depressed person to live.

D conveys the right meaning. Proof is correctly modified using an essential modifier with a "that" clause. Answer should be D.

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Re: The ivory-billed woodpecker, once the largest woodpecker in [#permalink]

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18 Nov 2012, 03:11
Jp27 wrote:
gmatbull wrote:
The ivory-billed woodpecker... has moved in and out of the extinct category, with scientists consistently
unable to find solid proof THAT the bird (the ivory-billed woodpecker) still exists.

IMO
[Reveal] Spoiler:
D
it is.

Hi - Have u seen from any GMAT source that proof for is wrong idiom - just to confirm
And only proof of and proof that is correct idiom?

cheers

when would we get to know where prove of applies or prove that??

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Re: The ivory-billed woodpecker, once the largest woodpecker in [#permalink]

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18 Nov 2012, 04:34
Maryam787 wrote:
Jp27 wrote:
gmatbull wrote:
The ivory-billed woodpecker... has moved in and out of the extinct category, with scientists consistently
unable to find solid proof THAT the bird (the ivory-billed woodpecker) still exists.

IMO
[Reveal] Spoiler:
D
it is.

Hi - Have u seen from any GMAT source that proof for is wrong idiom - just to confirm
And only proof of and proof that is correct idiom?

cheers

when would we get to know where prove of applies or prove that??

Hey Proof OF is used with NOUN ( or noun equivalent such as a noun phrase) because "of" in "proof of" is a preposition so it must be followed by noun!
Proof that + clause -> that here is used here as clause introducer, similar to suggest that report that etc (that can be used as a pro-noun as well but that completely different usage)

So in this Q both D and E grammatically correct but there is a meaning issue in E hence we have to go with D

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Re: The ivory-billed woodpecker, once the largest woodpecker in [#permalink]

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18 Nov 2012, 05:43
Usage of nouns such as "evidence/proof/report " are often modified by That-clause that contain full sentences.
So -D(that clause) is preferred over other prepositional phrases .

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Re: The ivory-billed woodpecker, once the largest woodpecker in [#permalink]

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26 Dec 2015, 18:26
Quote:
Hi - Have u seen from any GMAT source that proof for is wrong idiom - just to confirm
And only proof of and proof that is correct idiom?

Quote:
Hey Proof OF is used with NOUN ( or noun equivalent such as a noun phrase) because "of" in "proof of" is a preposition so it must be followed by noun!
Proof that + clause -> that here is used here as clause introducer, similar to suggest that report that etc (that can be used as a pro-noun as well but that completely different usage)

So in this Q both D and E grammatically correct but there is a meaning issue in E hence we have to go with D

Proof for... makes no sense.. it is non idiomatic.. right?

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Re: The ivory-billed woodpecker, once the largest woodpecker in   [#permalink] 26 Dec 2015, 18:26
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