Ответ:
1. If people eat too much, they get fat.
2. When Mark cooks salads, he uses only olive oil.
3. If children eat well, they are healthy.
4. The river freezes if it is very cold.
5. If you play outside, they don't get overweight.
6. I don't wear my old boots when I go to work.
7. If people don't drink, they die.
8. If she coughs, she drinks hot milk with honey.
Объяснение:
Условное предложение 0 степени