At the library, I _______ speak loudly
MUSTN'T
I _______ play games in class
MUSTN'T
I _______ have a shower
MUST
I ______ listen to the teacher
MUST
I ______ be late for class
MUSTN'T
I _______ sleep in class
MUSTN'T
I _______ brush my teeth
MUST
Children ________ drive
MUSTN'T
I _______ do my homework
MUST
I _________ use the phone when driving
MUSTN'T
I _______ clean my room
MUST
I ________ help my parents
MUST
I _______ be quiet in the library
MUST