VI
1 are- will damage
2 were- would
3 won't be
4 reduce- will pay
5 will unbalance
VII
1 danger
2 contamianted
3 pressure
4 polluted
5 dead
VIII
1 If people cared much more about environment, they would n't keep making it worse
2 Since she drank contaminated water in a long time, she suffer from a serious disease
3 If the drainage system wasn't damaged, there would be enough water for the crop
4 If I turned off some lights in the house, I would reduce my eyestrain
5 If the public transport system improved, it would encourage more people to use