I find ___ him all about it. A necessary B that nessary C necessary it to tell

题目

I find ___ him all about it. A necessary B that nessary C necessary it to tell
D it necessary to tell
选哪个啊?

答案

I find （填D,it necessary to tell） him all about it.
句意：我觉得有必要把所有的情况都告诉他.
理由：find it + 形容词 + to do,认为、觉得、发现做某事怎么样.