your notebooks / must / write in / you
You must write in your notebook.
your phone / you / use / in the classroom / mustn't
You mustn't use your phone in the classroom.
stay / you / in your seat / must
You must stay in your seat.
be polite / must / you
You must be polite.
you / keep / your classroom / must / tidy
You must keep your classroom tidy.
you / speak English / must / in English lesson
You must speak English in English lesson.
mustn't / you / late / be / for the lessons.
You mustn't be late for the lessons.
you / finish / on time / must / your homework
You must finish your homework on time.
chew gum / you / must / not / in class
You must not chew gum in class.
bully / your classmates / mustn't / you
You mustn't bully your classmates.
homework / students / do / must
Students must do homework.
fall asleep / in class / must / not /you
You must not fall asleep in class.
must / not / you / in school / smoke
You mustn't smoke in school.
bring / you / mustn't / animals / to school
You mustn't bring animals to school.
in the bin / the rubbish / must / you / put
You must put the rubbish in the bin.
fight / mustn't / you / in school
You mustn't fight in school.
listen to / must / the teacher / you
You must listen to the teacher.
in class / eat / you / mustn't
You mustn't eat in class.
must / to answer / your hand / raise / you
You must raise your hand to answer.
on the desk / write / you / mustn't
You mustn't write on the desk.
run / in the hallway / must / you / not
You must not run in the hallway.
a uniform / must / students / wear / in school
Students must wear a uniform in school.
cheat / must / not / you / in exams
You must not cheat in exams.
must / in the library / be / you / quiet
You must be quiet in the library.