They are going to see the movie Avatar(阿凡达). Why not ________ them?
A. to join B. join C. joining
We haven’t decided _______ we’ll go to Shanghai next week.
| A．where | B．when | C．why | D．how |
My friend Li Xiao knows my hometown very well because he _______ there many times with me.
| A．has been | B．has gone | C．had gone | D．went |
. Mary spends a lot of money on clothes _______ her family is not rich.
| A．because | B．though | C．if | D．so |
—Shall we go out for a walk?
—Sorry, I can’t. I _______ my homework.
| A．do | B．did | C．am doing | D．was doing |
I’m sorry, I didn’t _______ you clearly. Would you say it again?
| A．hear | B．notice | C．see | D．watch |