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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1717

The noise of the desks _____ could be heard in the next classroom.

A.being opened and closed B.opened and closed
C.having been opened and closed D.to be opened and closed
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Thenoiseofthedeskscouldbeheard