He is afraid of English in public.A. speakB. speakingC. spokenD. speaks

问题补充：

He is afraid of English in public.

A. speak

B. speaking

C. spoken

D. speaks

答案：

A. speak

(答案→)B. speaking

C. spoken

D. speaks

解析：句意:他害怕在公众面前说英语.本句中of是介词,后面接名词或者动名词作宾语,故选B.