They didn’t go to bed ________ they finished their homework.
A. whenB. becauseC. untilD. if
Everyone in China tried ______ something for the Beijing Olympic Games.
A. to do B. does C. do D. did
It’s hard to ________ this kind of plant. You have to water it every day.
A. look for B. look at C. look after D. look like
I don’t think fast food is good for our health, so I _______ go to MacDonald.
A. hardly B. always C. usually D. often
—_________ did he play soccer? —About 3 hours.
A. How many B. How much C. How often D. How long
—Could you please help me do homework this afternoon?
—_________ I will be free after 2:30 in the afternoon.
A. Sorry, I can’t B. No, you can’t
C. Sure, I’d love to D. Of course not
