50 балл Все плизз Спасибо)

A: 2. on 3. on 4. on 5. in 6. at 7. in 8. on 9. in 10. on 11. on 12. at 13. in 14. in 15. at

B (тут точно всë правильно): 1. in 2. to 3. in 4. at 5. to 6. in 7. at 8. to 9. at 10. at