— People says your little brother has been admitted into Qinghua University. — Yes. Never

问题补充：

— People says your little brother has been admitted into Qinghua University.

— Yes. Never he could achieve so much success.

A. I had thought

B. I would have thought

C. could I have thought

D. will I have thought

答案：

A. I had thought

B. I would have thought

(答案→)C. could I have thought

D. will I have thought

解析：考查倒装结构。never位于句首时，主句要用倒装；因是过去未曾想到，故用could have done形式。