Question 12: Much of the coast has been _______ by nuclear waste. A. infected B. contaminated C. corrupted D poisoned Question 13: If you drink too much coffee, you _______ able to sleep tonight. A. will be B. would be C. won’t be D. wouldn’t Question 14: If it _______ tomorrow, I will not have to water the plants in my garden. A. will rain B. rains C. rained D. would rain Question 15: If you didn’t play video games, you ________ have more time for the essay. A. have B. will have C. had D. would have Question 16: He wouldn’t pass the test if he ________ all of his lesson. A. didn’t revise B. revises C. revised D. wouldn’t revise Question 17: Floods and earthquakes are ________ disasters. A. native B. national C. international D. natural Question 18: Too much use of electric lights in cities may cause ________. A. thermal pollution B. air pollution C. visual pollution D. light pollution Question 19: Do you know what _______ cause air pollution? A. pollute B. polluted C. pollutants D. pollutant Question 20: Acid rain has caused _______ to the trees in this area. A. damage B. effect C. matter D. problem Question 21: - “I think the waste from the factory has polluted the lake?” - “________” A. Let’ go! B. That’s right C. You’re welcome. D. No, thanks. Question 22: – “ How about giving a presentation about noise pollution?” - “________” A. No, I like it at all B. Sure. It’s not far from here. C. That’s a good idea. D. I’m sorry, I can.