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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 430

_____ in prison for ten years, he seems to be unaware of what has happened outside.

A.Having kept B.Having been kept C.Kept D.Keeping
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inprisonfortenyears,heseemstob