He is the dark so he usually goes to sleep with the light .A. afraid to onB. terrified o

问题补充：

He is the dark so he usually goes to sleep with the light .

A. afraid to, on

B. terrified of, on

C. afraid of, open

D. interested in, closed

答案：

A. afraid to, on

(答案→)B. terrified of, on

C. afraid of, open

D. interested in, closed

解析：afraid to不敢做某事；terrified of害怕；afraid of害怕；interested in对……感兴趣。句意：他害怕黑暗，因此他通常是开着灯睡觉。ｏｎ用作形容词意思是开着的，open表示开放的，敞开的，故选B。