1. If it rains tomorrow, i'll stay at home.
2. If i were you, i would believe him.
3. If i go out, she gets angry.
4. If it takes me 7 years, i shall do it.
5. If i could trouble you for your names.
6. He asked if we would like some coffee.
7. If you don't mind, i will go there with you.
8. If you have a complaint, write to the director.10. If you had stayed,this would never have happened.11. If i had known that, i would have told you about it.12. If i went there, i would stay in the hotel.13. He asked me if i could help him.14. It's uncertain if he'll come this evening.15. I wonder if you could come.16. If you look at the teacher's results, you will see they are right.17. I wake up only if the alarm clock rings.18. If i should know his secret, i would told you.19. If i were a bird, i would fly freely.20. I would be grateful if you could come.