1. It rained heavily in the south，________ serious flooding in several provinces.
A. caused
B. having caused
C. causing
D. to cause
2. ________ at my classmates' faces, I read the same excitement in their eyes.
A. Looking
B. Look
C. To look
D. Looked
3. Lots of rescue workers were working around the clock, ______supplies to Yushu, Qinghai province after the earthquake.
A. sending
B. to send
C. having sent
D. to have sent
4. He had a wonderful childhood， _______with his mother to all corners of the world.
A. travel
B.to travel.
C. traveled
D. traveling
5. Dina, ________ for months to find a job as a waitress, finally took a position at a local advertising agency.
A. struggling
B. struggled
C. having struggled
D. to struggle
6. The lawyer listened with full attention，________ to miss any point．
A．not trying
B．trying not
C．to try not
D．not to try
7. The news shocked the public, _______to great concern about students’ safety at school.
A. having led
B. led
C. leading
D. to lead
8. _______ from heart trouble for years, Professor White has to take some medicine with him wherever he goes.
A. Suffered
B. Suffering
C. Having suffered
D. Being suffered
9. Finding her car stolen, _______.
A. a policeman was asked to help
B. the area was searched thoroughly
C. it was looked for everywhere
D. she hurried to a policeman for help
10. He sent me an e-mail, ________ to get further information.
A. hoped
B. hoping
C. to hope
D. hope
11. While building a tunnel through the mountain, _______.
A. an underground lake was discovered
B. there was an underground lake discovered
C. a lake was discovered underground
D. the workers discovered an underground lake
12. Suddenly, a tall man driving a golden carriage ________ the girl and took her away, ________ into the woods.
A. seizing; disappeared
B. seized; disappeared
C. seizing; disappearing
D. seized; disappearing
13. _______ in the queue for half an hour, Tom suddenly realized that he had left his wallet at home.
A. To wait
B. Have waited
C. Having waited
D. To have waited
14. European football is played in 80 countries, ______ it the most popular sport in the world.
A. making
B. makes
C. made
D. to make
15. Though _______ money, his parents managed to send him to university.
A. lacked
B. lacking of
C. lacking
D. lacked in
16.I ________________(have) a rest on the sofa when the telephone rang．
17.While we ______________(chat)when she came in．
18.We___________(have) a meeting when someone broke in.
19.She was on the point of watching TV when there_____(be) a power failure.