B. VOCABULARY AND GRAMMAR I. Choose the best answers. 1. Air________, together with littering, is causing many problems in our cities today. A. pollute B. pollution C. polluting D. polluted 2. The road in front of my office is always __________ when it rains heavily. A. to flood B. flooding C. flood D. flooded 3. Singapore is famous for its __________ and green trees. A. cleanliness B. cleanly C. cleaning D. clean 4. In some English speaking countries, turkey and pudding are ___________food at Christmas. A. national B. historical C. traditional D. possible 5. The USA has a population of 304 million, and it’s the third_________ country in the world. A. smallest B. largest C. narrowest D. highest 6. The roof of the building _____________ in a storm a few days ago. A. damaged B. was damaged C. has damaged D. has been damaged 7. A severe tropical___________ is called a typhoon. A. drought B. rain C. flood D. storm 8. As soon as the floodwater ___________ down, people ____________ their houses. A. went - cleaned B. had gone – cleaned C. went - had cleaned D. had gone – had cleaned 9. If the air was clean, we _______ have to wear masks when going out. A. wouldn’t B. won’t C. would D. will 10. Please telephone us if he _____. A. came B. will come C. comes D. coming 11. The Statue of Liberty is a major monument in New York which______ freedom. A. attracts B. symbolizes C. decides D. understands 12. David uses English as his mother _______ because he comes from the UK. A. tongue B. mouth C. nose D. cheek 13. I find it hard to understand that foreigner because of his ________. A. voice B. sound C. accent D. volume 14. I _______ Sydney Habour twice, so this time I think I _______ to a different place. A. have visited-will go B. have visited-will be going C. visited-will go D. visited-will be going 15. It won’t be possible to save the Earth if we don’t take______ right now. A. action B. job C. work D. duty 16. The flight number 781 to Melbourne ________ at 9 o’clock tomorrow morning. A. is arriving B. has arrived C. will arrive D. arrives 17. The _______buried the whole village while people were sleeping in their houses. A. mudslide B. tornado C. drought D. thunderstorm 18. The Lourve Museum ______ from 9am to 6pm every day except Tuesday and Wednesday. A. opens B. open C. will open D. will be open 19. On Tet holiday, people often ____________ relatives, friends, and ____________ to the pagoda to pray for luck. A. visit/went B. visit/go C. visited/went D. have visited/have gone 20. When I meet Jim in the summer camp, he ____________ English for 5 years already. A. was learning B. learnt C. has learnt D. had been learning 21. If I ____________ the enough money, I will buy a new house. A. have B. would have C. had had D. had 22. If I ___________ where she lives, I would go and visit her immediately. A. know B. had known C. knew D. knows 23. That bridge ____________ last September. A. is built B. is build C. was built D. was build 24. Food and medical supplies ____________ to the remote areas every year. A. is delivered B. are delivered C. have been delivered D. has been delivered 25. They have caused serious water pollution by dumping industrial waste ____________ the lake. A. in B. on C. at D. into 26. The Great Pyramid of Giza is one of the most famous ___________ wonders of the world. A. artificial B. natural C. temporary D. modern 27. You can see ____________ on the Canadian national flag. A. the maple leaf B. the red leaf C. the rose D. the oak tree 28. Mary is watching a film. She really likes it. Mary is really ____________ in the film. A. to interest B. interest C. interested D. interesting 29. The waste from the chemical factory is extremely ____________. A. harmless B. harmful C. harm D. unharmed