Question

______ you are supposed to do ______ you don't like a thing is ______ it. Don't complain.

A．That; what; change	B．When; that; to change
C．What; when; change	D．What; that; changing

Answer 1

C

试题分析：句意：当你不喜欢一个东西的是时候，你应该做的是改变它。不要抱怨。第一空填what连接主语从句，在主语从句中what做宾语，第二空填when，引导时间状语从句，第三空是省略to的不定式做表语，因为前面主句有do。所以选C。