题目内容

You must have missed the first train yesterday, ________ you?
A．weren’tB．didn’tC．mustn’tD．haven’t
B

试题分析：陈述句部分是含有“must表示推测”的句子，该句是对过去发生的事所进行的推测，反意疑
问句应该用一般过去时。故选B项。该句所说的实质就是：You missed the first train.句意：你昨天肯定
错过了头班火车，是吗？
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