(speak)
You mustn't speak.
(cheat in exams)
You mustn't cheat in exams.
(smoke)
You mustn't smoke.
(uniforms)
They/You don't have to wear uniforms.
(at the weekend)
You don't have to wake/get up early at the weekend.
(study)
She doesn't have to study. / You don't have to study.
(uniforms)
They/We/You must wear uniforms.
(turn on)
You must turn on your camera.
(eat)
You must eat fruit and vegetables/healthy food.
(use your phone)
You mustn't use your phone in the car.
(keep distance)
You must keep distance.
(listen)
You must listen to this CD.
(listen)
You mustn't listen to music in class.
(homework)
She must do her homework.
(feed)
She must feed her dog.
