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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1174

----Look at the boy running on the playground. Is it David?
---- It ______ be him. I saw him go to the teachers’ office just now.

A.mustn’t B.can’t C.may not D.needn’t
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Lookattheboyrunningontheplaygr