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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
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―We didn’t see Robert at the opening ceremony yesterday.                    
―No, he _______ it.

A.mustn’t have attended B.needn’t have attended
C.needn’t attend D.didn’t need to attend
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―Wedidn’tseeRobertattheopening