A good friend is a person who you can in your hour of need.A. turn onB. turn offC. turn d

问题补充：

A good friend is a person who you can in your hour of need.

A. turn on

B. turn off

C. turn down

D. turn to

答案：

A. turn on

B. turn off

C. turn down

(答案→)D. turn to

解析：词义辨析题。A. turn on 打开 B. turn off 关掉 C. turn down 调低D. turn to 求助于句意：好朋友就是在你需要的时候你可以求助的人。根据语境选D