二、单项填空(本节有10小题,每小题1分,共10分)21. Many people agree that ______ knowledge of English is a must in ______ international trade today.
—Are you getting a new car this year? —You must be joking! I can't afford to pay my bills, __________ buy a new car.
Being annoyed by the disappointing reply, the manager __________ and went out of the meeting room without saying anything.
The main character of the story, __________,the writer of the book offered us a lot of practical advice on how to live in a foreign country.
Only one third of the people present at the meeting were __________ the revision of the rules.
Sarah pretended to be cheerful, __________ nothing about the argument.