- 2 Dina and Leonid have to respect their teachers.
- 3 Dina and Leonid have to be silent in the school library.
- 4 Dina and Leonid don't have to wear a uniform.
- 5 Leonid doesn't have to show an ID card.
- 6 Dina has to study acrobatics.
Ответ: have to, have to, don't have to, doesn't have to, has to