You ... eat too much sugar. It's bad for your health.
don't have to
must / have to
mustn't
can
She ... go to school tomorrow because it's a holiday.
mustn't
can
doesn't have to
can't
We ... speak loudly in the library.
don't have to
have to / must
mustn't
can
He ... wear a uniform at school. It's a rule.
mustn't
can
has to / must
doesn't have to
You ... leave your bag here. It's not allowed.
have to
can
mustn't / can't
don't have to
We ... eat pizza for lunch today if we want to.
mustn't
have to
can
can't
I ...... study this weekend. It's my obligation as a student.
must / have to
should
mustn't
You ...... feed the animals in the Zoo. It's forbiden!
mustn't
don't have to
must
I ...... make my bed every morning. I know my parents need help at home.
don't have to
must / have to
can
You ...... help me now. Mum helped me this morning.
mustn't
must
don't have to
She ...... wear a uniform at school. She can wear jeans.
can
doesn't have to
must / have to
You ...... use your mobile phone in a plane.
can
don't have to
mustn't
They ...... study harder if they want to pass their exam.
must / have to
don't have to
can't
My husband is cooking tonight so I ...... do it!
can
must
don't have to
You ...... start a fire in this forest. It is prohibited.
mustn't
can
don't have to
If Tom wants to be a doctor, he ...... finish university.
doesn't have to
must / has to
mustn't
