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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 831

We        the manager , but no one        the telephone number .

A.could have called ; knew B.could have called ; had known
C.could call ; had known D.could call ; knew
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Wethemanager,butnoonetheteleph