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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1603

-The door was open.
-It ______ open. I had locked it myself and the key was in my pocket.

A.can not be B.must not be C.can not have been D.must not have been
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-Thedoorwasopen.-Itopen.Ihadlo