You ..............listen to the teacher.
must
You ...............sleep in class.
mustn't
You/ must/ talk/ loudly/ the library
You mustn't talk loudly in the library
You..............raise hand to speak.
must
You................wash your hands.
must
You.............take photos.
mustn't
You (must do/ must doing) your homeowork.
must do
You.................be late for school.
mustn't
on Sunday / you / have to / work / Did / ?
Did you have to work on Sunday?
You.............use your mobile phone in class.
mustn't
We [had to / must] take the car to the garage last week.
had to
You [mustn't / don't have to] go to that meeting if you don't want to.
don't have to
The musicians [must / have] to carry all their equipment with them.
have
You...............wear a mask.
must