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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1339

—I wonder why Sara looks worried today.
—I'm not sure,but she      a small accident driving here.

A.could have B.might have
C.might have had D.must have had
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—IwonderwhySaralooksworriedtod