题目内容
12．-Dad，must I practise the piano today？-No，you _．You may do it tomorrow．（ ）
| A． | needn't | B． | mustn't | C． | shouldn't | D． | can't |
分析 句意：--爸爸，今天我必须练习钢琴吗？
--不，你不必．你可以明天练．
解答 答案：A．根据No，you ，You may do it tomorrow，可知你可以明天练，在这里是作出否定回答．由must引导的一般疑问句表示否定回答时需要用needn't或don't have to来回答．故选A．
点评 本题考查了情态动词的用法．解答时需要对句意以及所给选项的意思熟练掌握．
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