问题补充:
(·上海高考)Its no use without taking any action.
A. complain
B. complaining
C. being complained
D. to be complained
答案:
A. complain
(答案→)B. complaining
C. being complained
D. to be complained
解析:选B句意:只抱怨而不采取行动是没用的。在“its no use doing”结构中,v.ing形式作真正主语。