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  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:1999

—I wonder why Suzan 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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—IwonderwhySuzanlooksworriedto