I can hardly heat the radio. Would you please ?A. turn it onB. turn it downC. turn it upD.

问题补充：

I can hardly heat the radio. Would you please ?

A. turn it on

B. turn it down

C. turn it up

D. turn it off

答案：

A. turn it on

B. turn it down

(答案→)C. turn it up

D. turn it off

解析： turn up 开大一些；turn off关掉； turn on 打开；turn down关小一些。