Students ___ turn off their mobiles during the lesson or the teacher will take them away.
must
has to
don't have to
At school we wear uniforms: we ___ wear a white shirt and blue trousers.
has to
mustn't
have to
I ___ leave early today because of the doctor's appoinment.
has to
don't have to
must
mustn't
You ___ bring the towel . There are some towels at swimming pool
have to
must
don't have to
mustn't
In Britain, we ___ drive on the left.
has to
have to
mustn't
don't have to
You ____ step on the grass in the park.
needn't to
don't have to
musn't
must
When we use our bike, we _____ wear a helmet.
don't have to
mustn't
have to
She is eating in a restaurant, she ________ to bring her fork.
mustn't
must
has to
doesn't have to
You _______ take photos at school! It's prohibited!
MUSTN'T
Sally _______ brush her teeth. She is going to the dentist.
HAS TO / MUST
We go to school by bus. We _______ pay the ticket or pay for a pass.
MUST / HAVE TO
