pupils mutsnt take a pet to the lesson
pupils must do what the teacher says
pupils mustnt speak loudly in the classroom
pupils mustnt sleep in the classroom
pupils mustnt draw on the desks
pupils must answers the teacher's questions
pupils must say "good morning"to the teacher
pupils mustnt write notes to friends
pupils mustnt draw on the walls of the classroom
pupils mustnt run and jump between the desks
pupils must be polite to other classmates