1. When we want to find ________ certain information in a text quickly， we scan ______ text for key words and phrases， dates， numbers， etc.
A. the; a
B. /; the
C. a; the
D. /; /
2. The patient has tried quite a few kinds of medicine. But _______ has had any effect on his disease.
A. none
B. some
C. little
D. no one
3. It is reported in the papers that the old coins _______under the earth for about 200 years by the time they were discovered.
A. had buried
B. had been buried
C. buried
D. were buried
4. Today' s teens don't see anything strange in the fact that the computer _______ a central place in their social lives.
A. puts up
B. turns up
C. makes up
D. takes up
5. Desertification， the name for ______ happens when farmable land is turned into desert， is a growing world problem.
A. which
B. where
C. what
D. how
6. ______ you get into university in the future， you would have to go and take the chance.
A. Will
B. Should
C. Would
D. Could
7. Your sister nearly _______ all her spare time to her study during the three years.That's right， or she ________ the first place in her school in the College Entrance Examination.
A. devoted; wouldnt have taken
B. spent; wouldnt have taken
C. had devoted; hadnt taken
D. had spent; couldnt take
8. _______ there are many different types of food， some animals spend their lives eating only one type.
A. Although
B. Where
C. If
D. Unless
9. Has Li Lei finished his work today? I have no idea， but he ______ it when I saw him this morning.
A. had done
B. would do
C. was doing
D. would have done
10. The Burj Dubai Skyscraper will reach a height of 700 meters，_______ is said to be the highest building around the world.
A. it
B. that
C. where
D. which
11. Has Jerry returned to Shanghai?No， her father _______ in the USA for anther year for her master's degree.
A. agreed her to stay
B. permitted her to stay
C. promised her to stay
D. approved she staying
12. I' ve studied watching birds as one of my interests. Could I make some suggestions? _______________.
A. You will make it
B. It doesnt matter
C. Go right ahead
D. Take it easy
13. ____by a greater demand for vegetables， farmers have built more green houses.
A. Driven
B. Being driven
C. To drive
D. Having driven
14. Christmas is drawing near. Are you going to Beijing for the holiday?I haven't decided yet. I ________ go home， but it all depends.
A. must
B. shall
C. need
D. might
15. Johnson， I've no experience in repairing a computer. I wonder if you could teach me?___________. What time suits you best?
A. Help yourself
B. Go ahead
C. If you like it
D. With pleasure