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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