Either the twins or their father ( )our school before ,so they can come here by themselves tomorrow.(visit)请问应该填has visited 还是have visited 为什么啊,请给我解答一下!谢谢.
问题描述：
Either the twins or their father ( )our school before ,so they can come here by themselves tomorrow.(visit)
请问应该填has visited 还是have visited 为什么啊,请给我解答一下!谢谢.
答
用hso visited ,因为Either the twins 是其中一个姐妹，是单数。
答
has visited.
either...or句型的谓语单复数要用就近原则。就是不管主语有多少个人，只看跟谓语动词最近的那个主语是单数还是复数。这里father是单数，故而用has。
答
has visited
either or 短语 谓语跟随or后面的代词而定,这就是所谓的就近原则,本题目or后面是father,第三人称单数,故用HAS VISITED