--There will be air pollution if there are people driving.I hope the air will be freshe

问题补充：

--There will be air pollution if there are people driving.

--I hope the air will be fresher soon.

A. less,less

B. less,fewer

C. fewer,fewer

D. fewer,less

答案：

A. less,less

(答案→)B. less,fewer

C. fewer,fewer

D. fewer,less

解析：fewer修饰可数名词，less修饰不可数名词，pollution是不可数名词，而people是

可数名词，故选B。