You ___to the meeting if you have no time

来源：百度知道 编辑：UC知道 时间：2024/06/28 04:58:19
You ___to the meeting if you have no time
1.needn't to come
2.don't need coming
3.needn't come

1.need要么接原型做情态动词，要么接to所以答案B错误
2.need的否定：need做情态动词的时候后面直接跟not;后面接不定式to的时候need是不及物动词它的否定形式应该是do not need to
所以答案应该选择第三项

3
need既可以作情态动词，又可以作实意动词
作情态动词，用法同may，must等词相同，后面跟动词原形，否定形式直接在need后加not

作实意动词，后面要跟不定式，也就是to do，否定形式前面加don't

所以这里可以是needn't come(情态动词)
也可以是don't need to come(实意动词)

needn't come （不必做。。）
need在这是助动词故不用to,
need coming显然不对

选c
don't need to do = needn't do = don't have to do不必做某事

选3.此处need作为情态动词，所以need与come之间无需任何其它词

needn't come 是正解，不需要做某事：needn't to do sth