Choose the best answer. 1. By the time we _____ to the cinema, the film had started. A. gets B. had got C. has got D. got 2. When the policeman came there, the robber _____ A. had left B. has left C. left D. was left 3. If you were the president, what _____ you do to help the environment? A. will B. did C. would D. do 4. The village's drinking water _____ with poisonous chemicals since the factory came into operation. A. contaminates B. is contaminated C. has contaminated D. has been contaminated 5. When the policeman came to the scene, the driver of the car _____ A. have left B. had left C. leaves D. was left 6. You will recognize Jenny when you see her. She _____ a red hat. A. wears B. is wearing C. will wear D. will be wearing 7. Recent_____ developments have made robots more user-friendly and intelligent. A. science B. scientist C. scientific D. scientifically 8. If we use water_____, more people will have cleaner water. A. care B. carefully C. careless D. carelessly 9. Water pollution make some aquatic animals_____ A. dying B. to die C. die D. died 10. She prefers English _____ France. A. to B. for C. at D. in 11. Three hundred people _____ homeless by the earthquake. A. left B. were leaving C. were left D. had left 12. By the time we got to the cinema, the film_____ A. had started B. started C. starting D. has started 13. Many people die_____ food poison today. A. at B. of C. in D. on 14. The _____ buried the whole village while people were still sleeping in their houses. A. drought B. flood C. mudslide D. tornado 15. If people _____ to work by bus, there _____ fewer car fumes. A. to travel / be B. travel / are C. will travel / be D. travel / will be 16. If people didn't throw rubbish in the street, it _____ attractive. A. will look B. would look C. look D. to look 17. There are about 750 million English speakers in the world, and this number _____ fast. A. is increasing B. to increase C. are increasing D. increase 18. In the future, natural disasters_____ accurately with the help of technology. A. to predict B. predict C. will be predicted D. will predict 19. On my birthday, I was very pleased because I______ a nice present. A. receive B. had received C. receives D. am receiving 20. Water _____ in the lake has made the fish die. A. pollution B. pollute C. polluted D. polluting 21. The train or HN _____ at 7a.m tomorrow. A. leaves B. leaving C. to leave D. left 22. Environmental pollution has_____ to lots of health problems. A. caused B. got C. made D. led 23. The heavy rain has caused _____ in many parts of the country. A. drought B. storms C. forest fire D. floods 24. By the time we _____ to the cinema, the film had started. A. had got B. got C. were getting D. get 25. A person who _____ the bagpipes is called a piper. A. plays B. performs C. entertains D. does 26. The team's success was largely_____ to her efforts. A. because B. due C. since D. however 27. I often drink coffee, but today I _____ tea. A. am drinking B. drink C. drank D. drinks 28. If you_____ the president, what would you do to help the environment? A. are B. had been C. were D. was 29. Eating too much sugar can _____ to health problems. A. cause B. lead C. make D. take 30. Emergency teams are still removing the _____ from the plane crash. A. dirt B. debris C. dust D. air