2019年mpacc考试英语真题——介词和介词短语2477

{01}Li Gang was required to apologize ___ the people present at the meeting ______ what he had done .

A.for ; by

B.with ; about

C.to ;for

D.at ; with

解析：
试题分析：考查介词：句意：李刚被要求因为他做的事情，向到会的人道歉。Apologize to sb. for sth因为某事向某人道歉，选C。
本题选C。
{02}I think you should complain—_________ , of course, you are happy with the way things are.

A.if

B.until

C.unless

D.once

解析：
试题分析：此处if如果；until直到……才； unless除非；once一旦。句意：我认为你应该抱怨，除非你对事情感到满意。根据句意选C。
本题选C。