------It was determination and willingness that made him a good actress.
------Yes, that is also it takes to do anything very well.
A. that
B. how
C. what
D. which
网友回答
A. that
B. how
(答案→)C. what
D. which
解析： what引导的表语从句, what在从句中作takes的宾语。句意：是的，这也是做好一切事情所需要的东西。若选A、D项，则加上先行词，构成定语从句。