-look!therelots of traffic in this day .-_we should be careful when we cross the street.

分类: 作业答案 • 2021-12-23 10:34:18

问题描述：

-look!there____lots of traffic in this day .-_____we should be careful when we cross the street.
A.are;but B.is;so
为什么不用are而用is

答

宾语lots of traffic 是不可数的,不可数的要用is,

-look!there____lots of traffic in this day .-_____we should be careful when we cross the street.