Since the 1930's aircraft manufacturers have tried to build : GMAT Sentence Correction (SC)
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# Since the 1930's aircraft manufacturers have tried to build

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Manager
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Since the 1930's aircraft manufacturers have tried to build [#permalink]

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23 Apr 2010, 07:44
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Question Stats:

42% (01:40) correct 58% (00:52) wrong based on 13 sessions

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7. Since the 1930's aircraft manufacturers have tried to
build airplanes with frictionless wings, shaped so
smoothly and perfectly
that the air passing over
them would not become turbulent.

(A) wings, shaped so smoothly and perfectly
(B) wings, wings so smooth and so perfectly shaped
(C) wings that are shaped so smooth and perfect
(D) wings, shaped in such a smooth and perfect manner
(E) wings, wings having been shaped smoothly and
perfectly so

explanation please??
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Re: 1930's aircraft manufacturer [#permalink]

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23 Apr 2010, 09:01
B - resumptive modifier has to be used to resolve ambiguity. In the rest of the options(apart from B and E) the plural pronoun might refer to manufacturers or planes.

E awkward construction.
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Re: 1930's aircraft manufacturer [#permalink]

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23 Apr 2010, 11:18
'Smooth' goes for wings and works as adjective. Use of adjective as an adverb is always wrong. In A smoothly is an adjective. Therefore, A is wrong and B is correct.
nilesh376 wrote:
7. Since the 1930's aircraft manufacturers have tried to
build airplanes with frictionless wings, shaped so
smoothly and perfectly
that the air passing over
them would not become turbulent.

(A) wings, shaped so smoothly and perfectly
(B) wings, wings so smooth and so perfectly shaped
(C) wings that are shaped so smooth and perfect
(D) wings, shaped in such a smooth and perfect manner
(E) wings, wings having been shaped smoothly and
perfectly so

explanation please??
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Re: 1930's aircraft manufacturer [#permalink]

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28 Nov 2010, 05:40
In A "smoothly" is an adverb modyfing "shaped".

Why is that wrong? Why "smooth" has to be an adjective modyfing wings and not an adverb explaining how the wings were shaped? (the wings were shaped smoothly...).

Please clarify.
Thanks.

reply2spg wrote:
'Smooth' goes for wings and works as adjective. Use of adjective as an adverb is always wrong. In A smoothly is an adjective. Therefore, A is wrong and B is correct.
nilesh376 wrote:
7. Since the 1930's aircraft manufacturers have tried to
build airplanes with frictionless wings, shaped so
smoothly and perfectly
that the air passing over
them would not become turbulent.

(A) wings, shaped so smoothly and perfectly
(B) wings, wings so smooth and so perfectly shaped
(C) wings that are shaped so smooth and perfect
(D) wings, shaped in such a smooth and perfect manner
(E) wings, wings having been shaped smoothly and
perfectly so

explanation please??

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Re: 1930's aircraft manufacturer [#permalink]

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28 Nov 2010, 06:05
I think comma is redundant in A and C (but I am not sure about this - can somebody please explain?)
In C: " that are" is wrong tense
E is awkward as mailnawin1 said.

That leaves B as correct answer?
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Re: 1930's aircraft manufacturer [#permalink]

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28 Nov 2010, 20:02
Confused between A & C. Whats the OA?
Re: 1930's aircraft manufacturer   [#permalink] 28 Nov 2010, 20:02
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# Since the 1930's aircraft manufacturers have tried to build

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