1. He would have passed the exam if he had worked hard
2. You wouldn't be tired if you hadn't stayed up so late last night.
3. If the shirt had fitted me, i would have bought it
4. If he had know French, he would have gone to Paris for his holiday
5. If he hadn't worked lazily, he wouldn't have sacked
6. If you didn't live so far away, we would visited you very often
7. If the book were cheap, I would buy it
8. A computer will be bought tomorrow
9. The lessons were being writen by the students