Question

me ayudan con 10 reglas de la escuela utilizando must y mustn't porfa

Answer 1

must study very hard 
mustn t eat in class 
must do their homework
must keep the classroom clean and tidy
must obey their techers
mustn t bully their classmates
mustn t cheat on exams 
must arrive on time
son 8 pero espero que te sirvan salu2