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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 1284

— John has put forward ______ most challenging question for us to answer.
— Yes, it really is. I have never heard ______ harder one.

A.a; the B.the; the
C.a; a D.the; a
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—Johnhasputforwardmostchalleng