问题补充:
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
答案:
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。