-Let's go to the concert tonight, Mary.

资格题库2022-08-02  30

问题 -Let's go to the concert tonight, Mary.-Sorry, I ____. I have to help my mom with the housework.A. needn't B. can't C. mustn't D. shouldn't

选项 A. needn't
B. can't
C. mustn't
D. shouldn't

答案 B

解析 句意:——玛丽,今晚我们去听音乐会吧。——抱歉.我不能去。我不得不帮妈妈做家务。needn't没必要;can't不能;mustn't禁止;shouldn't不应该。结合句意可知,B正确。
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