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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 926

______ their homework, these three students have to stay in the classroom for another thirty minutes.

A.Not finishing B.Not finished
C.Having not finished D.Not having finished
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theirhomework,thesethreestuden