As it turned out to be a small party in the house we______so formally.A.needn"t dress upB
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As it turned out to be a small party in the house, we______so formally.
A.needn"t dress up
B.did not need have dressed up
C.did not need dress up
D.needn"t have dressed up
请帮忙给出正确答案和分析,谢谢!
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正确答案:D
本题考查情态动词,根据题中的原因状语从句意思(原来只是一个家庭聚会)的提示,可知主句应该是"我们本不必穿得如此正式",所以要用needn’t+have+过去分词的形式。
