主谓一致一般遵循三条原则
1.语法一致的原则
2.意义一致的原则
3.邻近一致的原则
下面是你的答案解释:
1.答案是C
由and 或both...and,neither...nor来连接并列主语时,谓语用复数..
not only...but also,either...or...,not ...,but.用就近原则
Both you and I are right.
Neither you nor I are right
Either you or I am right.
2.答案是C
如果主语是单数,尽管后面跟有with,together with,along with,as well as,like,but,except,besides,including,no less than,rather than ,as much as,more than,along,in addition to等介词短语,谓语动词仍用单数；若这些词前的主语为复数,则谓语动词也用复数.
An English teacher together with his studentsh has climbed up to the top of the mountain.
Mary as well as her friends likes this painting.
She,like you and Tom is very tall.
3.答案是C
某些单复数同形的名词作主语时,依照意义一致的原则,表示单数意义时,谓语用单数；表示复数时谓语则用复数.这类名词有：sheep,deer,fish,Chinese,Japanese
,means（方法、手段）
Every means has been tried.All means have been tried.
4.答案是C
a large quantity of,a large amount of,谓语用单数.quantities of,large amounts of,谓语用复数 a great deal of 只修饰不可数名词,谓语用单数
A large quantity of students has been to London.
Large quantities of students have been to London