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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 885

She knows so much about England. She ___ there before.

A.must be B.must live
C.must have been D.must have lived in
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SheknowssomuchaboutEngland.She