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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 269

—I expected him to be nervous before his speech, but he was as cool as a cucumber.
—He _______ it carefully.

A.could have prepared B.shouldn’t have prepared
C.must have prepared D.can’t have prepared
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—Iexpectedhimtobenervousbefore