2. 职称英语
  3. As it turned out to be a small house party, we ______so formally.A、need not have

As it turned out to be a small house party, we ______so formally.A、need not have

游客2023-10-29  65
问题 As it turned out to be a small house party, we ______so formally.
选项 A、need not have dressed up
B、must not have dressed up
C、did not need to dress up
D、must not dress up
答案 A
解析 根据前一分句中的turn out to be．．．“到后来才发现”，可知说话者事先并不知情，所以事实上穿得很正规，need not have done结构表示“本没必要”，符合题意，故A为答案。C项didn’t need to do表示在过去没必要做某事，并且事实上也没有做，故不对；must not常表示“不准”。B、D都不正确。
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