题目内容
16．-Dad，must I practice the violin today？-No，you __________．You __________ do it tomorrow．
| A． | mustn't，may | B． | needn't，may | C． | shouldn't，can | D． | needn't，mustn't |
分析 --爸爸，今天我必须练习小提琴吗？
--不，你不必．你可以明天练．
解答 答案：B．mustn't禁止；needn't不必；shouldn't不应该；may可能，can能，会．根据Must，可知这里是以must开头的一般疑问句，对于must引导的一般疑问句，肯定回答用must，否定回答用needn't或don't have to来回答，根据No，可知不必今天就练习小提琴，可以明天练习．故选B．
点评 本题考查了情态动词的用法．解答时注意对于must引导的一般疑问句，肯定回答用must，否定回答用needn't或don't have to来回答．
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