The war made impossible for the scientist to go on with his research.A. himB. it C. thisD

问题补充：

The war made impossible for the scientist to go on with his research.

A. him

B. it

C. this

D. that

答案：

A. him

(答案→)B. it

C. this

D. that

解析：考查it做形式宾语，句型：主语+make it +adj/n. for sb to do,it是形式宾语，不定式是真正的宾语，句意：战争使得科学家继续研究成为可能。选B。