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According to the new traffic laws,people _________ drive aft

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According to the new traffic laws,people _________ drive after drinking wine or beer.
A.wouldn't B.couldn't C.needn't D.mustn't
答案D 考查情态动词.句意“根据新交通法,人们禁止在喝酒或啤酒后驾车.”wouldn’t“不会”;couldn’t“不能”;needn’t“不必”;mustn’t“不许,禁止”.根据句意可知,选D.查看原帖