问题描述：
You _______ to the meeting today if you have something important to do.
A.needn't to come
B.don't need come
C.don't need coming
D.needn't come
为什么不选A?不是need to do/don't need to
A.needn't to come
B.don't need come
C.don't need coming
D.needn't come
为什么不选A?不是need to do/don't need to
问题解答：
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