题目内容
As it turned out to be a small house party, we _______ so formally.
A. needn’t dress up B. didn’t have to dress up
C. might not have dressed up D. needn’t have dressed up
D
解析:
根据前一句说这是一个小型的家庭聚会,所以后一句意思是:本没必要,故选D。
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