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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 274

_______that his son was out of danger, he fell asleep at ease after two sleepless nights.

A.Convinced B.Convincing
C.To convince D.Having convinced
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thathissonwasoutofdanger,hefel