Question

_______ you are supposed to do is _______ it if you don’t like a thing. Don’t complain.

A．That; change

B．When; to change

C．What; change

D．What; changing

Answer 1

C

試題分析：is前面的“_______ you are supposed to do”是主語部分，即主語從句，從句中的do后缺少賓語，用what引導，that在名詞性從句中無意義，when作狀語，排除A、B；當前面有動詞原形do時，后面的不定式通常省略符號to，故選C。