题目内容
―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
C

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题目内容
―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