1. Vietnam gained ______________ in 1945. (depend) 2. Sulphur dioxide is a _______________(pollute). 3. Older people are important __________________

1. Vietnam gained ______________ in 1945. (depend)
2. Sulphur dioxide is a _______________(pollute).
3. Older people are important __________________ to the economy. (contribute)
4. Police are investigating the _______________of a young woman. (appear)
5. The traffic here is very ______________for children. (danger)
6. Luckily, nothing _______________ was stolen. (value)
7. The _________ of school leavers that go to university is about 5 per cent. (percent)
8. Teaching young children is a __________ and rewarding job. (challenge)
9. __________, the light came on, although no one was near the switch. (mystery)
10. We believe in investing in __________ research. (science)
11. They need more funds to ___________ the country’s telephone system. (modern)
12. The whole issue is still under ____________. (investigate)
13. His ___________ in the team has caused controversy. (include)
14. In britain, the ___________ of the country has historically been left to the navy. (defend)
15. Sulphur dioxide is one of several __________ that are released into the atmosphere. (pollute)
16. Every fire destroys ____________ wood, wildlife, and good soil. (value)
17. Satellite photographs provide a wide range of information, ____________ water temperature, depth and the undersea populations. (inclusion)
18. Biodiversity is a term that refers to the ______________ of different kinds of animals and plants which make a balanced environment. (exist)
19. Hydroelectric dams hold back needed water and provide power for homes and ________. (industrialization)
20. We can stop ____________ the problem while scientists search for answers, and laws are passed in nature’s defense. (worst)
21. Some are swimming animals such as fishes and sharks that move ____________ of water currents. (depend)
22. Her back injury has made it _______________ for her to play tennis anymore. (possibility)