1. If you turn off all the lights, you will not pay more money.

2. If she wears warm clothes, she won't have a cold.

3. If you are careful, you may not have an accident.

4. If you phone your parents, you won't have a trouble.

5. If she whispers, everyone won't know what she is saying.

6. If you stay here, you will fell save.

7. If you pay electricity bill today, your electricity won't be cut off.

8. If you don't stop smoking, your cough may be worse.

9. If we use less fossil fuel, they won't be run out soon.

10. If it doesn't stop raining today, we mat be faced with a serious flood.

11. If you do morning exercises regularly, your body will be fitter.

12. If we don't renewable energy, we will have nothing for the future generation.

13. If we reduce the use of non-renewable energy, the climate won't changes.

14. If you lock all the doors, no one can break into your house.

15. If we don't continue hunting polar bears, they will become extinct in near.

1. if you turn off all the lights , you will not pay more money

2. if she wears warm clothes, she won't have a cold

3. if you aren't careful, you will have an accident

4. if you phone your parents, you won't have a trouble

5. if she doesn't whisper, everyone will know what she is saying

6. if you stay here, you will feel save

7. if you don't pay electricity bill today, your electric will be cut off

8. if you don't stop smoking, your cough may be worse

9. if we use less fossil fuel, they won't be run out soon

10. if it doesn't stop raining today, we may be faced with a serious food

11. if you do morning exercise regularly, your body will be fitter

12. if we don't renewable energy, we will have nothing for the future generation

13. if we don't reduce the use of non-renewable energy, the climate will change

14. if you lock all the doors, noone can break into your house

15. if we don't continue hunting polar bears, they will become extinct in near.