Question

The traffic on the main streets has a longer green signal than ___on the small ones.

A．one

B．this

C．that

D．it

Answer 1

C

试题分析：考查代词：句意：主干大道的绿色交通信号灯的时间要长于小干道的信号灯。这里需要代词指代the traffic，One泛指可数名词单数；that特指不可数名词；it指代前文出现的事物。选C。