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  • 科目:英语
  • 题型:单选题
  • 难度:困难
  • 人气:1192

---I’ll ask the teacher about past tense. I’m very puzzled about it.
--- That is just _____ most of our classmates have doubt.

A.what B.why C.where D.how
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I’llasktheteacheraboutpasttens