问题补充：
It was stupid him this mistake .
A. for;to make
B. of;to make
C. for; make
D. to;to make
答案：
A. for;to make
(答案→)B. of;to make
C. for; make
D. to;to make
解析：句意：对于他犯这样的错误是愚蠢的。Itis +形容词 + of/for sb. +to do sth.如果句型中的形容词用来形容人的,就用of,说明to do sth就用for，该句中stupid用来修饰人，故选B
