Question

“Why couldn’t they meet us at five o’clock?” “Because they were delayed by _________.”

A．heavy traffic

B．heavy traffics

C．crowded traffic

D．crowded traffics

Answer 1

A

首先要明确traffic为不可数名词，没有复数形式，故排除B和D。另外，汉语习惯说“交通拥挤”，而英语习惯上却不能用crowded 来修饰 traffic，要表示汉语的“交通拥挤”，英语通常说heavy traffic，即选A。