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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 871

My friend, who      on the International Olympic Committee all his life, is retiring next month.

A.served B.is serving C.had served D.has served
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Myfriend,whoontheInternational