题目内容

—Must I hand in my homework now， Mr.Smith?
—No，you ________.
A．can’tB．shouldn’t
C．wouldn’tD．needn’t
D

试题分析：must的含义是必须一定，其否定形式mustn’t表示禁止的含义。故must的否定回答一般借助于needn’t’和don’t have to来构成，句意:现在我必须交上我的作业吗？史密斯先生。——不，你……。结合语境可知选D。
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