6. Air pollution has many effects ......................the environment and living organisms.
A. in B. of C. for D. on
7. By the time we got to the cinema, the film …………………...
A. started B. starting C. starts D. had started
8. The victims of the flood .........................with food and water by the rescue team.
A. provided B. will be provide C. were provided D. had provided
9. Don’t drink that water . It’s ............................
A. damaged B. dumped C. comtaminated D. fresh
10. If you ..........................the president, what would you do to help the environment ?
A. are B. had been C. were D. had been
11. If it is sunny tomorrow, we ............................on a camping trip.
A. would go B. went C. will go D. go
12. The heavy rain has caused .................................in many parts of the country.
A. storms B. floods C. drought D. volcano
13. ..................take a taxi, you will be late for the meeting.
A. If you not B. Unless you C. Because you D. For you
14. If I were you , I ......................the truth.
A. would tell B. told C. will tell D. am tell