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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1702

Every possible means ________, but the teacher as well as the students ________ found a solution to the problem yet.

A.has been tried; hasn’t B.has tried; haven’t
C.have tried; haven’t D.have been tried; hasn’t
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相关知识点

Everypossiblemeans,buttheteach