III
1. If it wasn't raining heavily, you could take part in the game.
2. If they hadn't had a quarrel, they wouldn't have stopped working.
3. If he had smoked so much, he wouldn't have died of lung cancer.
4. If we weren't very busy, we would invite many friends to the party.
5. If you don't answer all of my questions, I can't do anything to help you.
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IV
1. She said that if her parents gave her the money, she would buy a new PC the next month.
2. He said he would tell me the secret if I promised not to tell anyone else.
3. She said if she had had more time, she would come to see me.
4. They said they would have visited me if they had had more free time.
5. They said if they had had enough money, they would have bought that house.
