问题补充：
It was crazy you to let such a young girl drive your car.
A. for
B. of
C. about
D. on
答案：
A. for
(答案→)B. of
C. about
D. on
解析：句意：你疯了，让那么个小女孩开你的车。It is +形容词+of/for+sb. to do sth., 如果形容词是对行为人品格的评价，如kind，foolish，用介词of;如果形容词是对事件进行描述，如difficult，important，用介词for，故选B。
