Пожалуйста, помогите исправить предложения! 1 We mustn't go to school tomorrow - it's Sunday 2 When my father worked at the airport, he must get up very early. 3. You must to read this book, it's absolutely fantastic! 4 Do football players allowed to use their hands?

1. We shouldn't go to school tomorrow - it's Sunday.

2. When my father worked at the airport, he had to get up very early.

3. You have to read this book, it's absolutely fantastic!

4. Are football players allowed to use their hands?