Question

【题目】A mistake ______ have been made on our bill. We didn’t order any fish today.

A. shouldB. wouldC. mustD. can

Answer 1

【答案】C

【解析】

句意：我们的帐单一定弄错了。我们今天没点鱼肉。

A. should应该；B. would会，将；C. must必须；一定；D. can能，会。根据下文We didn’t order any fish today.可知这里是一定已经出错了，must have done表示一定已经做了……。根据题意，故选C。