3. If she were not so absent-minded, she would be a much better student.  

4. If my sister does not go to the south, we will spend the summer in St Petersburg together.  

5. If they had not gone to Moscow last year, they would not have heard that famous musician.  

6. If you do not get tickets to the Philharmonic, we shall stay at home.  

7. If you were not so careless about your health, you would consult the doctor.  

8. I should be delighted if I had such a beautiful fur coat.  

9. If it rains, we shall have to stay at home.  

10. If he had worked hard, he would have achieved great progress.  

11. If it is not too cold, I will not put on my coat.  

12. I would have written the essay long ago if you had not disturbed me.  

13. If he did not read so much, he would not be so clever.  

14. If my friend is at home...