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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
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--Has Peter handed in his paper yet?
---I’m not sure. He _______ on it last week.

A.was working B.has worked C.worked D.had worked
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HasPeterhandedinhispaperyet?I’