题目内容

【题目】We _______ pay to get into the concert. It's free.

A. can't B. mustn't C. might not D. don't have to

【答案】D

【解析】

试题分析:句意:我们不必付钱去这个音乐会,它是免费的。A. can't不能;B. mustn't不准;C. might not可能不;D. don't have to不必,根据句意是“不必”,所以此题应选D。

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