If he _____(need)help,he doesn't have to go far.空格中为什么填“needs”?
问题描述：
If he _____(need)help,he doesn't have to go far.空格中为什么填“needs”?
答
在一般现在时态中,主语是单数第三人称时,谓语动词要用现单三形式.need的现单三形式就是needs .,