Making mistakes is a part of life. matters is you do afterwards.
A. It; what
B. All; what
C. What; what
D. That; what
网友回答
A. It; what
B. All; what
(答案→)C. What; what
D. That; what
解析：句意：犯错误是人生一部分，真正重要的是之后我们所做的。第一空中what引导主语从句，在句中作主语；第二空what引导表语从句，做do的宾语。故选C.