1. 7 years old
2. they spend 5 years in primary school
3. Yes, they did.
4. State schools are usually free.
5. They have 5 lessons a week.
6. Yes, they does.
7. After the third(3) lesson
8. Yes, they does.
9. They are usually free after lessons
10. Не помню.
11. Summer holidays.
12. Тоже не помню.