It was the training he had at school made him good jumperA. what；whatB. that；that C. wha

问题补充：

It was the training he had at school made him good jumper．

A. what；what

B. that；that

C. what；that

D. that；had

答案：

A. what；what

(答案→)B. that；that

C. what；that

D. that；had

解析：第一空白处的that为关系代词，引导定语从句；第二空白处的that为强调结构连词。