问题描述：
There were four in the car besides the driver,and Jane managed to take her kid as well.
Oh,dear,it______a comfortable trip,I think.
A.can be B.mustn't be C.couldn't have been D.wouldn't have been
请翻译并说明选择的理由.
Oh,dear,it______a comfortable trip,I think.
A.can be B.mustn't be C.couldn't have been D.wouldn't have been
请翻译并说明选择的理由.
问题解答：
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