问题 单项选择题

You ______ include this section. It's not necessary.

A.wouldn't

B.couldn't

C.don't need

D.don't have to

答案

参考答案:D

解析:don't have to“不必”;如果用need,则应是you don't need to...(need是实义动词),或you needn't include...(need是情态动词)。

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