— Hey, boy. You can’t cross the street now. You have to wait _______ the traffic lights turn green.— Oh, sorry and thank you.
The workers are _______ because their boss hasn’t paid them for months. A. angry B. happy C. satisfied
They are going to see the movie Avatar(阿凡达). Why not ________ them? A. to join B. join C. joining
It’s a nice house, _______ it doesn’t have a garden. A. and B. or C. but
—Let’s go _________. —Great! I’d like to relax myself in the water. A. skating B. swimming C. climbing
______April 14 th, 2010, a terrible earthquake(地震) happened in Yushu, Qinghai Province. A. In B. At C. On