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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 2052

He must have gone out. I heard the noise of the door ______when I was still in bed.

A.being locked B.to lock C.locking D.having locked
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相关知识点

Hemusthavegoneout.Iheardthenoi