It’s too dark here. Please the light.A. turn offB. turn onC. turn upD. turn down

问题补充：

It’s too dark here. Please the light.

A. turn off

B. turn on

C. turn up

D. turn down

答案：

A. turn off

(答案→)B. turn on

C. turn up

D. turn down

解析：短语辨析. turn off关掉;turn on打开;turn up 出现,发生;turn down减小,关小;前面句子意思为“这个房间太黑”，故应该是“开灯”，本题答案为B。