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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1561

________ is known to us all is that the old worker,for ________ life was hard in the past,still works hard in his seventies.

A.As;whom B.What;whose
C.It;whose D.What;whom
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isknowntousallisthattheoldwork