It was the skills that he had acquired at his training periodenabled him to get such a hig

问题补充：

It was the skills that he had acquired at his training periodenabled him to get such a high post in that world-famous company.

A. when

B. that

C. who

D. which

答案：

A. when

(答案→)B. that

C. who

D. which

解析：考查强调句的用法：强调句的结构是：it is/was+强调部分+that….,这句话强调的是the skills that he had acquired at his training period是后面句子的主语，句意是：就是他在训练的时候获得的技能使他在世界著名的公司获得如此高的地位。选B。