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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1809

A number of books in the library ____    been stolen so that the number of them ____ smaller than before.

A.have, is B.has, is C.has, are D.have, are
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Anumberofbooksinthelibrarybeen