1. If you had worn protective clothing while volcano surfing, you wouldn't have hurt yourself.
2. When the temperature rises above 0 degrees Celsius, ice melts.
3. I would travel around the Europe, if I won a lottery.
4. If she buys tickets, we will go to the stadium.
5. Sam can go out when he has finished his project.
6. If I were you, I would go camping.
7. Unless you wear protective clothing, you can't go volcano surfing.
8. They would have stayed in a hotel if they had had more money. But they didn't.
9. If you do not water plants they will die.
10. We would have had a great time if we had ridden a guard bike.