2019年mpacc考试英语真题——连词875

{01}The men will have to wait all day _____ the doctor works faster..

A.if

B.unless

C.whether

D.that

解析：略
本题选B。

{02}. It is uncertain __ side effect the medicine will bring about, although about two thousand patients have taken it.

A.that

B.what

C.how

D.whether

解析：本题考查主语从句的引导词。根据句意：尽管大约有两千名病人服用过这种药物，但是，它会带来什么样的副作用还不确定。side effect意思是“副作用”，还原主语从句中的主干是the medicine will bring about ______ side effect。故选择what，形容词“什么样的”，起修饰作用。
本题选B。