-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

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-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

宾语lots of traffic 是不可数的,不可数的要用is,

为什么不能是交通事故呢
我选b
交通灯啊
苏
所以
下句用but啊

因为traffic是不可数名词。

-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 单项选择,There____lots of traffic on the road.A.are B.have C.is D.has look look! look look look look. look look look look look look look look look look