1 if people don’t care much about the environment,they will make it worse

2since she drink  contaminated water in long time,she suffered

3is damaged,there is not enough water for the crop

1. If people cared much about environment, they wouldn't make it worse

2. Since had drunk contaminated water in a long time, she suffered from a serious disease

3. If the drainage system weren't damaged, there would be enough water for the crop

4. If I were you, I would turn off more lights in the house to reduce my eyestrain

5. If the public transport is improved, more people will use it

6. Unless you leave me alone, I'll call the police 

7. If it didn't snow, we could go to school 

8. If you drink too much coffee, you can't sleep

9. If you make me some coffee, I'll give you some sweets

10. Should you see Peter, tell him he should be here at 8:00

Chúc bn học tốt !!!!