Teenagers ______ smoke in China.
| A．should be allowed to |
| B．Should not be allowed to |
| C．should be not allowed to |
| D．should not be allowed |
- You seem familiar with Mr. John?
-Of course, we_______ together for three years in the 1990s.
| A．have worked | B．were working | C．are working | D．worked |
The new law says that people_______ drive after drinking wine.
| A．wouldn't | B．needn't | C．won't | D．mustn't |
You will fall behind others_______ you work hard.
| A．if | B．unless | C．though | D．since |
-I don't know about you, but I'm sick and tired of this weather.
-_______. I can't stand all this rain.
| A．I don't care | B．It's hard to say | C．So am I | D．I hope not |
- What do you want to be when you grow up?
-I want to be_______ social worker. Many people are in great need of our help.
| A．a | B．an | C．the | D．不填 |