IV/ Choose A,B,C,or D that best completes each unfinished sentence or substitutes the underlined part : 7. Many organizations have been (set up) and funds have been raised. A. established B. collapsed C. delayed D. decreased 8. Laws have been introduced to (prohibit) the killing of endangered animals. A. advised B. decreased C. ban D. encouraged 9. The……..is the air, water land in or on which people animals and plants live. A . consequence B. environment C. planet D. resource 10. Many national parks have been established……………endangered animals. A. to save B. to kill C. to protect D. to ban 11. Many rare…….. of animals are in danger of extinction. A. species B. classes C. being D. pairs 12. People are destroying the air by adding…….to it A. polluted B. pollutions C. polluters D. pollutants 13.Rain forest are places…… people harvest wood, delicious fruits, and powerful medicine. A. in which B. in that C. in where D. which 14. The heavy rain has caused ……….. in many parts of the country. A. crops B. floods C. water D. soil 15. He …….. the details of his uncle’s will. A. was given B. gave C. gives D. being given 16. He expected us ……….. him a job. A. offering B. to offer C. offer D. to be offered 17. More and more rare animals are..................danger of extinction. A. for B. on C. at D. in 18. Deforestation is (destroying) large areas of tropical rain forest. A. changing B. raising C. becoming D. damaging 19. Do you know exactly....................number of Siberian tigers in China ? A. a B. an C .the D. no article needed