Ответ:
1. If I eat less, I will feel better. (Conditional 1)
2. If a story was interesting, I would read it to my children. (Conditional 2)
3. You'll be sick if you don't stop binging on junk food. (Conditional 1)
4. If I slept more, I wouldn't be so exhausted. (Conditional 2)
5. If Sia had learnt everything by heart, she would have passed the exam successfully. (Conditional 3)
6. If you are late again, I will have to fire you. (Conditional 1)
7. If Australia did not happen to be isolated from the rest of the world, it wouldn’t possess such a unique fauna. (Conditional 2)
8. If you had gone to bed in time you wouldn’t have overslept your interview. (Conditional 3)
9. If Anna knew your email, she would forward you my message. (Conditional 2)
10. If your friend had time, he would help us. (Conditional 2)
11. If we won the lottery, we would buy new house. (Conditional 2)
12. We’ll go home, if the movie is boring. (Conditional 1)
13. If I had made more money, I would have bought a better house. (Conditional 3)
14. I will have a good job if I study well. (Conditional 1)
15. If the weather is good, we will go for a walk in the park. (Conditional 1)