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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1979

--- Look at ______ book on the desk . Is it ______ useful one ?
---Yes, it is . In the book there is much advice on how to learn math well.  

A.a, the B.the, a C.the, an D.a, an
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Lookatbookonthedesk.Isituseful