I thought necessary him to tell his father everything.A. it; ofB. that; forC. that; ofD.

问题补充：

I thought necessary him to tell his father everything.

A. it; of

B. that; for

C. that; of

D. it; for

答案：

A. it; of

B. that; for

C. that; of

(答案→)D. it; for

解析：句意,为了他，我认为把一切都告诉他的父亲是有必要的。it是形式宾语，真正的宾语是后面的不定式，for 为了……,故选D。