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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1029

--- Did you turn off the lights before you left the computer room?
---- Oh, I forget _______ them off. I’ll go to do it.

A.to turn B.having been turned C.to have turned D.turning
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Didyouturnoffthelightsbeforeyo