Помогитеее с английским срочно

1. If you don't water plants, they die
2. If you heat ice, it melts.
3. If I'm thirthty, I'll buy a bottle of water.
4. If you eat too much junk food, you will get ill.
5. If l ate less, I'd be healthier.
6. If I had some oranges, I'd make orange juice