he ()to the party thise afternoon if he has something important to do

he ()to the party thise afternoon if he has something important to do

题目
he ()to the party thise afternoon if he has something important to do
A needn't go B doesn't need going C doesn't need go D needs not go 选哪个为什么
答案
A
need 作情态动词后接动词原形,没有人称和数的变化,故排除 D,其否定形式是needn‘t,作实义动词时,人作主语后接TO DO ,否定形式要加助动词doesn’t,再排除B与C
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