6. Nuclear energy is unlimited but it is very _________to human beings and the environment.
A. extinct B.released C. endangered D. dangerous
7. The music _________ you are listening sounds really interesting.
A. which B.to that C. to which D. to whom
9. Dinosaurs became _________ millions of years ago.
A. develop B.extinct C. increase D. decrease
10. She is the woman _______ I told you.
A. to whom B. with whom C. about which D.about whom
13. It was the kind of accident for _________nobody was really to blame.
A. who B. whom C. that D.which
14. He is the singer about _________ I often tell you.
A. whom B. that C. him D. who
15. The 1stAsian Games _________ in New delhi, India in 1951.
A. were held B. are held C. was held D. is held
16. Walkers can unwittingly damage the fragile environment _________.
A. that the birds live B. where the birds live in
C. which live the birds D. in which the birds live
17. Oil, coal, and natural gas are _________fuels made from decayed material from animals or plants.
A. Fossil B.Smokeless C.Unleaded D.Solid
18. Only six _________ were played in the first Asian Games.
A. athletes B. sports events C. coaches D. spectators
19. ________ heat comes from deep inside the earth.
A. Geothermal B. Solar C. Nuclear D. Hydro
20. The sun, water and the wind are other_________sources of energy.
A. alternative B. replace C. electric D. useless
21. They won two gold_________in bodybuilding and billiards.
A. degrees B. awards C. prizes D. medals
22. Although there are some disadvantages, the potential of alternative sources of energy_________ great.
A. are B. is C. have been D. was
23. Thousands of national parks all over the world_________ to protect endangered animals.
A. has been established B. has been establishing
C. have been established D. have been establishing
24. The quality of athletes, officials and sports facilities _________ through time.
A. is developing also B. has also been developing
C. have also been developing D. are developing
25. They work in a hospital _________ by the government.
A. which sponsored B. was sponsored C. sponsored D. sponsoring
28. Many efforts have been made to protect ____ nature.
A. danger B. dangerous C. endanger D. endangered
