11. Half the world's rain forests have already been_____________. endangered b. eroded c. found d. destroyed 12. Try to eliminate fatty foods from your diet. a. limit b. get rid of c. move d. add 13. Endangered animals should be bred in areas. a. conservative b. conservable c. conservation d. conservanc) 14. Acid rain has caused severe on the hillside. a. erosion b. pollution c. destruction d. floods 15. This channel allows rainwater to run off. a. keep inside b. move around c. flow into d. flow out of 16. Last night a tornado swept through Rockville. It ………. everything in its path. a. was destroy b. was being destroyed c. destroyed d. had been destroyed 17. Water can be held on the land by vegetation. a. plants used as food b. grown trees c. the growth of plants d. plants and trees 18. take the train instead of the bus? It's faster. a. How about b. Let's c. Why don't d. Why not 19. ______air makes people unpleasant to breathe. a. Pollute b. Pollution. c. Polluted d. Polluting 20. We are now facing the possible of several rare species. danger b. variety c. existence d. disappearance 21. 'Would you like ……….. lunch with us?' `Yes, I'd love to.' a. have b. to have c. having, d. had 22. Are you interested in scuba diving?' => Undersea life is very ____________ a. fascinated b. fascinating c. being fascinating d. being fascinate 23. 'Ms. Jones, please type those letters before noon’. ' 'They've already ……….. sir. They're on your desk.' a. typed b. been typed c. being typed d. been being typed 24. Both domestic and imported automobiles must ……… anti-pollution devices. a. equip with b. be equipped with c. equip by d. be equipped 25. What a beautiful dress you're wearing!' Thank .you. It ……….. especially for me by a French tailor.' a. is made b. has made c. made d. was made 26. We should do something immediately to save the Earth ……….being destroyed. a. from b. for c. in d. at 27. Man and animals need a constant supply of water to live. a. regular b. rare c. short d. inadequate 28. Man is doing harm ………..the environment. a. on b. in c. for d. to 29. Animals living in the ………need protecting. a. wild b. wildly c. wilder d. wilderness