1. If you run, you will catch a train.
2. I'm sure he will come if you invite him.
3. I will call you if I finish my work early. 4. If you study hard, you will pass your exams.
5. If you pass the exam, you will get the certificate.
6. If you do not hurry, you will be late. 7. Will you write to me If I give you my address?
8. If you do not miss the train, you will arrive on time.
9. If I have time tomorrow, I will do it. 10. If it snows tomorrow, the children will play snowballs.
11. If I do not see you tomorrow, I will call you.
