=>
B/
1. If the factory weren't located near our village, there wouldn't be air pollution and noise pollution.
2. If the local people had fresh water, they wouldn't have to use water from the polluted river.
3. If the soil wouldn't be badly polluted, trees and grasses could grow here.
4. If Mr.Quang didn't work in a noisy environment, his hearing wouldn't become worse.
5. If the factory treated its waste well, there wouldn't be serious water pollution.
IX/
1. one
2. their
3. full
4. causes
5. the
6. source
7. air
8. form
9. for
10. work
