1. If I were
toothless and bald-headed, I would be terribly depressed.
3. If you are a guest in the house, you will
be polite. 4. If we had to wait a minute longer, we would
be late for the train. 5. If there were a thick carpet on the floor
and a bright cushions on the sofa, it would be very modern room. 6. There will be an awful mess on your desk if
you don`t put things right. 7. He would have learned quite a lot if he had
visited the lessons. 8. They would have spent a delightful weekend
in the country if they had bought a house there. 9. You ought not to have said this if you knew
the details.