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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1170

The children,________ had played the whole day long,were worn out.

A.all of what B.all of which
C.all of them D.all of whom
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Thechildren,hadplayedthewholed