第1个回答 2011-12-29
both ....and.....意为“两者;两个;双方”(谓语动词用复数)
Both John and Ann are good at French.
either.....or...或者......或者.......
He is either a doctor or a teacher.
Either you or he hs to go there.
neither.......nor......既不.......也不.....
Neither he nor I am good at English.
none of 没有人(物),指三个或三个以上都不是,谓语动词可以是单数形式,也可以是复数形式。 None of them like/ likes playing basketball.