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# According to United States Air Force officials, a cannon

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Manager
Joined: 30 May 2009
Posts: 81

Kudos [?]: 110 [0], given: 2

According to United States Air Force officials, a cannon [#permalink]

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09 Jul 2009, 11:40
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According to United States Air Force officials, a cannon shooting dead chickens at airplanes has proved helpful to demonstrate what kind of damage can result when jets fly into a flock of large birds.

(B) shooting dead chickens at airplanes has proved itself helpful as a demonstration of
(D) that shoots dead chickens at airplanes proves itself helpful to demonstrate
(E) that shoots dead chickens at airplanes has proved helpful in demonstrating

any idiom pertaining to demonstrate exists..?

Kudos [?]: 110 [0], given: 2

Senior Manager
Joined: 25 Mar 2009
Posts: 300

Kudos [?]: 270 [0], given: 6

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09 Jul 2009, 16:03
First thing I believe is incorrect is “proves itself helpful.” This eliminates B,C,D.

Just reading the remaining choices, E sounds best to me. OA?

Kudos [?]: 270 [0], given: 6

Manager
Joined: 19 Nov 2007
Posts: 167

Kudos [?]: 275 [0], given: 4

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10 Jul 2009, 07:37
IMO..D "helpful to demonstrate" sounds better

Kudos [?]: 275 [0], given: 4

Intern
Joined: 10 Jul 2009
Posts: 12

Kudos [?]: [0], given: 1

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10 Jul 2009, 07:39
I feel A sounds better.. helpful in demonstrating what kind of.... doesn't sound correct... does it???

Kudos [?]: [0], given: 1

Director
Joined: 01 Aug 2008
Posts: 728

Kudos [?]: 843 [0], given: 99

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10 Jul 2009, 07:54
I think its A..

has proved ... to demonstrate

Kudos [?]: 843 [0], given: 99

Manager
Joined: 30 May 2009
Posts: 81

Kudos [?]: 110 [0], given: 2

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10 Jul 2009, 09:05
topher wrote:
First thing I believe is incorrect is “proves itself helpful.” This eliminates B,C,D.

Just reading the remaining choices, E sounds best to me. OA?

why do u think so..??

@all,

The key to ans lies in deciding which one is correct betwn A & D.

Kudos [?]: 110 [0], given: 2

Manager
Joined: 17 Aug 2008
Posts: 72

Kudos [?]: 163 [0], given: 10

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10 Jul 2009, 09:53
Hi,
That shoots cannot be used as it shows as if the canon is shooting on its own.
And then from A, B & C A as to demonstrate is the idiom

Kudos [?]: 163 [0], given: 10

Senior Manager
Joined: 25 Mar 2009
Posts: 300

Kudos [?]: 270 [0], given: 6

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10 Jul 2009, 10:17
Ok then I choose A.

"to demonstrate" is better than the other options. As noted before, "proves itself helpful" just doesn't sound right. What has proved itself? The cannon?

Kudos [?]: 270 [0], given: 6

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