Circle the best answer for each sentence.
6. Nuclear energy is unlimited but it is very _________to human beings and the environment.
7. The music _________ you are listening sounds really interesting.
8. He was the first man _________ me the truth.
9. Dinosaurs became _________ millions of years ago.
10. She is the woman _______ I told you.
11. Joyce thanked us for _________ them to dinner and said that they wanted to have us over for dinner next week.
12. Maria needs_________ another job. Her present company is going out of business.
13. It was the kind of accident for _________ nobody was really to blame.
14. He is the singer about _________ I often tell you.
15. The 1st Asian Games _________ in New delhi, India in 1951.
16. Walkers can unwittingly damage the fragile environment _________.
17. Oil, coal, and natural gas are _________ fuels made from decayed material from animals or plants.
18. Only six _________ were played in the first Asian Games.
19. ________ heat comes from deep inside the earth.
20. The sun, water and the wind are other_________ sources of energy.
21. They won two gold_________ in bodybuilding and billiards.
22. Although there are some disadvantages, the potential of alternative sources of energy _________ great.
23. Thousands of national parks all over the world_________ to protect endangered animals.
24. The quality of athletes, officials and sports facilities _________ through time.
25. They work in a hospital _________ by the government.
26. The first person _________ the ball will be the winner.
27. If he had listened to me, he _________ in the exams.
28. Many efforts have been made to protect ____ nature.
29. “Have you ever met the man _________ over there?” “No. Who is he?”
30. A: “Thank you for helping me!” - B. “_________”