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–May I smoke in the room?
--No, you______________. It’s a non-smoking room..
A.mightn’tB.won’tC.needn’tD.mustn’t
D
本题后半句的含义是此房间是无烟区,所以应该是不准抽烟在此房间抽烟,mustn’t表示不准的意思,故本题选D。
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