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
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cans
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IMO A
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zaarathelab
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My take -hritik wrote: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
1. One needs to understand the meaning of the sentence
2. them in the non-underlined part is the key to above.
A) 'THEM' can refer to manufacturers, airplanes, wings - they are all before the comma.
B) CORRECT (so smoothly, so perfectly are parallel)
C) SO SMOOTH and PERFECT are not parallel
D) Same problem as A
E) Placement of SO changes the meaning.
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