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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 2137

I wonder whether the teacher is one of those who _______ to the mountain village to help the children there.

A.have sent B.has sent C.has been sent D.have been sent
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Iwonderwhethertheteacherisoneo