Talk with your partner about what you don't have to do during the vacation.

What don't you have to do on vacation?
1. I don't have to go to school.
2. I don't have to take the bus.
3. I don't have to take bus number 5 to go to school.
4. I don't have to get up early.
5. I don't have to do my homework.
6. I don't have to see my homeroom teacher.
7. I don't have to go to the academy to study.
8. I don't have to see the friends I don't like.
9. I don't have to see the teachers.
10. I don't have to attend music class.
11. I don't have to learn math in the math classroom.
12. I don't have to see the bully in my class.

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Would you check all the sentences and correct errors? Thank you.

All are fine!

Another interesting question is "What can I do on vacation?" =)

There are no errors in the sentences you provided. They all correctly express things that you don't have to do during your vacation.