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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1096

The children were playing games on the playground, ________ school uniforms.

A.all of them wore B.all wearing
C.all of whom wearing D.all were wearing
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Thechildrenwereplayinggamesont