either...or...的就近原则：either...or...连接两个主语时，其谓语动词应与最近的一个主语在人称和数上保持一致。变成一般疑问句，助动词形式与主语you保持一致。
either or就近原则
either/either…or
1.either“两者当中任何一个”，后有of时接名词的复数形式，无of时接单数名词，动词用单数形式。
You may wear either of the hats.
Either pencil is ok for this.
2.either…or…“不是……就是……，或者……或者…….”动词与临近的主语保持一致。即 “就近原则”。
Either you or he has to go = Either he or you have to go.
Neither you nor I am right .= Neither I nor you are right.
