It was the training he had as a young man made him so excellent.
A. what; that
B. that; which
C. that; what
D. which; that
网友回答
A. what; that
B. that; which
C. that; what
(答案→)D. which; that
解析：第一空考查定语从句，先行词是the training，定语从句中had后面缺少宾语，第二空考查强调句，强调的是the training，句意是：就是他在年轻的时候进行的训练使他这么优秀。选D。