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VI/

1. C         

2. B             

3. A                 

4. B

VIII/

1. Radioactive pollution is very dangerous since it can cause abnormal growth. 

2. Because leaves are damaged, the tree cannot get enough food energy to stay healthy. 

3. If I had much money now, I would buy a house in Phu Cuong. 

4. If light pollution didn't happen, there wouldn't be a change in animal's living patterns. 

5. Because of the dangerous acid rain, trees' leaves are damaged. 

6. Hundreds of cartoons for children have been produced by the Watt Disney Studios, the famous movie company.