If tap water were as dangerous as some people think，____ would be getting sick.

A.a lot of more us

B.more a lot of us

C.a lot of us more

D.a lot more of us

请问怎么选？

回答如下：

D为正确答案

a lot more of us 我们中还有更多的人，a lot +比较级别

参考译文：如果自来水像一些人认为的那样危险，我们中会有更多人生病。

C选项为什么错？

继续跟踪回答如下：

more 表示更多，或者再，又，不能放在名词/代词后面，只能放在前面

例如：

(1) some more students

(2) five more apples 

(3) a lot more apples

(4) a lot more of us