Complete the sentences with the correct form of the word in parenthese
1. The authorities are taking steps to prevent_____ (deforest)
2. He was very _____with his mark in the exam as he had worked so hard for it. (disappoint)
3. We should take steps to stop wasing so many_____resources. (nature)
4. Air is one of the most serious problems in big cities. (pollute)
5. He couldn't hide his _____when he heard she wouldn't come.(disappoint)
6. Teacher_____ prefer students with good behavior.(nature )
7. Some people are not aware of the _____effects of alcohol. (harm)
8. The authorities are encouraging farmers to use _____friendly farming methods. (environment)
9. The river is heavily _____with toxic waste from local factories. (pollution)
10. Sulphur dioxide is a_____ cause acid rain.(pollute)
11. They are trying hard to protect the environment, but the results were rather_____ (disappoint)
12. The children can watch that movie. It's quite______. (harm)
13. Most countries now have ______problems (environment)
14. Pollution can____marine life (harmful)
15. People don't realize that they are breathing _____ air(pollute).
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