单选题
You ______ include this section. It's not necessary.
A、
wouldn't
B、
couldn't
C、
don't need
D、
don't have to
【正确答案】
D
【答案解析】
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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