Determination is a kind of basic quality and is it takes to do jobs well.A. what B. that C

问题补充：

Determination is a kind of basic quality and is it takes to do jobs well.

A. what

B. that

C. which

D. why

答案：

(答案→)A. what

B. that

C. which

D. why

解析：表语从句it takes to jobs well缺少宾语，用what构成“It takes sth to do sth”的句型。故选A。