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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
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-----The windows must have taken you quite a long time that day.
------Right. They          for weeks.

A.haven’t been cleaned B.hadn’t been cleaned C.didn’t clean D.haven’t cleaned
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Thewindowsmusthavetakenyouquit