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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 2107

So difficult ___it to work out the problem that I decided to ask Tom for advice.

A.I did find B.did I find C.I have found D.have I found
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Sodifficultittoworkouttheprobl