1. Some________disasters happen suddenly. A. cultural B. naturally C. nature D. natural 2. Many people ________ to Ha Long Bay for many years. A. travel B. are travelling C. have travelled D. travelled 3.They all succeeded in running out of the house before house__________. A. damaged B. erupted C. collapsed D. felt 4. if I ________ you , I wouldn’t throw trash on the street. A. be B. will be C. were D. am 5. The people in this village were to public shelters to avoid the storm. A. evacuated B. given C. brought D. provided 6. The new hotel _________ next year. A. is build B. will be built C. build D. will build 7. Polluted water in this river make the fish ________. A. to die B. die C. dying D. to be die 8. We can’t go swimming ________the heavy rain. A. despite of B. although C. because of D. because 9. By the time we arrived, the film _________ A. had started B. starts C. start D. starting 10. Debris was_________ for miles after the tornado touched down late Saturday. A. evacuated B. scattered C. collapsed D. trapped 11. Last summer, Mike spent two weeks__________ a summer camp. A. for B. in C. on D. at 12. Her English accent is so good that she is thought of as a__________ speakers. A. natural B. official C. non-native D. native 13. We__________ in Chicago for more than 20 years. A. live B. are living C. had lived D. have lived 14. The maple leaf ________ Canada. A. symbolizes B. has symbolized C. is symbolizing D. symbolise 15. If I _________ enough money, I would buy a car. A. have B. had C. will have D. had had 16. The river water is severely polluted, mostly________ the dumping of raw sewage. A. due B. lead to C. because of D. so 17. ________can cause high blood pressure, heart problems, sleep disturbances, and hearing problems. A. Air pollution B. Light pollution C. Water pollution D. Noise pollution 18. The volcano has erupted approximately once every ten years_________ 1970. A. since B. in C. from D. for 19. I _______my homework before I went to bed. A. finished B. have finished C. finish D. had finished 20. She ____________to the USA before. A. has never been B. has never be C. have never been D. have been