I think ____________ him to expect anyone to support his idea.
A、it is childish for
B、it childish of
C、childish of
D、it childish for
【正确答案】：D
【题目解析】：adj. for sb. to do sth, 因为形容词性的差别，介词不同adj. of sb. to do sth, It is important for him to doIt is kind of him to do I think that it is adj. him to expect anyone to support his idea.I think it important for us to do somethingI think it is important for us to do something都对，前者是it作为形式主语，是一句简单句后者是 宾语从句，是复合句 I think （that）it is important for us to do something省略了that
