题目内容

We ________ have bought so much food now that Suzie won't be with us for dinner.(2012·江西)
A．may notB．needn'tC．can'tD．mustn't
B
考查情态动词。句意：既然Suzie不和我们一起吃晚饭，那我们就没有必要买这么多食物。根据 “now that Suzie won't be with us for dinner”可知答案，needn't have done表示“本没有必要做某事而实际上却做了”。
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