The ______ of a computer is the set of keys that you press in order to do something.
A. mouse B. keyboard C. speaker
---Sorry, sir. But is this backpack yours?
---Oh, sorry. I just took it _____. It looks like mine.
A. by accident
B. by chance
C. by mistake
--- You look upset. What’s the matter?
--- Everyone ______ us to win the game, but we lost.
A. expected B. challenged C. promised
---Is it _____ for you to go out tonight?
--- Sorry. I have to help my mother with housework tonight.
A. difficult
B. convenient
C. humorous
The ____ of something is the amount of money that you have to pay in order to buy it.
A. speed B. size C. price
He is one of the most celebrated writers in America.
A. important
B. famous
C. humorous
