Rewrite these sentences by using conditional sentence Type I

Here are the rewritten sentences using conditional sentence Type I:

10. If it doesn’t stop raining today, we may face a serious flood.

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

12. If we use renewable energy, we will have something for the future generation.

13. If we reduce the use of non-renewable energy, the climate will change.

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

15. If we continue hunting polar bears, they will become extinct in the near future.

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

17. If she doesn’t wear warm clothes, she will have a cold.

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

19. If you phone your parents, you will avoid trouble.

20. If she doesn’t whisper, everyone will know what she is saying.