主谓一致概念：主语和其谓语动词在人称、意义               和数上保持一致。主谓一致分为三种情况：
语法一致
内容一致
就近一致
主谓“三”一致
(1) 假如主语后面跟有with、together with, along with, but, except, like, in addition to,including, besides, as well as, as much as, rather than, more than 等短语再加一个名词时，谓语动词仍与主语（第一个词）保持一致。如：
A library together with 5000 books ____     given to our school as a gift.
语法一致
Mr. Johnson as well as his wife and children ____visiting the Great Wall now.
was
is
(2) 用and连接并列主语，假如主语是同一个人、同一事物或同意概念时，谓语动词用单数，不然用复数。如：
A teacher and writer ___ ...