问题描述：
the original plan []
A.needs not be changed;B.doesn't need changed;C.need not to be changed;D.doesn't need to be changed.我选A,need到底什么时候情态动词用,一般动词用,有什么区别?
搞错了
A.needs not be changed;B.doesn't need changed;C.need not to be changed;D.doesn't need to be changed.我选A,need到底什么时候情态动词用,一般动词用,有什么区别?
搞错了
问题解答：
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