Question

I’m moving to the countryside because the air there is much fresher than ________ in the city．

[　　]

A．

ones

B．

one

C．

that

D．

those

Answer 1

答案：C
解析：

根据句意，“我”是把农村的空气与城市的空气作比较，空气air为不可数名词，所以应用that指代。one指代上文提到过的单数名词。ones指代上文提到过的复数名词。