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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 1086

_______ in the city for thirty years, the old man moved back to the countryside.

A.Having worked B.Working C.To have worked D.To work
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inthecityforthirtyyears,theold