We work together to achieve our common purpose: _______ world that is safer, cleaner and healthier than_______ one we are living in.
| A．the;/ | B．a; / | C．the; the | D．a; the |
Quite a lot of people watch TV just to _____ time.
A. kill B. spend C. take
The only thing _____ can be done is to stop them from going there.
A. that B. which C. what
Never ______ such a foolish man since I came to this part of the city.
A. I did see B. did I see C. have I seen
I asked him where ________?
A. he worked B. did he work C. does he work
---- Must I get through the business in one evening?
---- No, you______.
A. mustn’t B. needn’t to C. don’t have to