please answer the question

1. If I hadn't studied hard, I wouldn't have done well in my exam.
2. If I had been diligent, I would have done any homework.
3. If our teacher had liked our project on plants, She would have given us an A.
4. If I hadn't forgotten to bring my lunch to school, I would haven't been hungry all day.
5. If I hadn't written carefully, I would have made some mistakes.
6. If our music class hadn't been fun, I wouldn't have enjoyed it.
7. If it hadn't rained all weekend, I wouldn't have stayed inside.

Semoga membantu :D