Official Solution:Due to the intense summer heat in Shanghai, dress codes have been relaxed to such an extent that

residents think of pajamas and other nightwear to be clothing appropriate for any place and time.

A. residents think of pajamas and other nightwear to be

B. residents think of pajamas and other nightwear being

C. a resident thinks of their pajamas and other nightwear being

D. residents think of pajamas and other nightwear as

E. pajamas and other nightwear are thought of, by residents, as

The original sentence contains an idiomatic error;

think of X as Y is correct.

Think of X to be Y is incorrect.

Choice

D fixes this error without introducing additional ones.

Choices B and C retain this idiomatic error (

think of X being Y is not correct.)

Choice E is passive and is less concise than choice D, and it is thus not preferable.

Answer: D

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