Never leave to others ( ) you should do yourself.

Never leave to others ( ) you should do yourself.
A、what
B、that
C、which
D、all
【正确答案】：A
【题目解析】：leave sth. to sb.帮某事留给某人，永远不要把自己能做的事情留给别人做。What 引导宾语从句。