You ... eat too much sugar. It's bad for your health.
can
don't have to
mustn't
must / have to
She ... go to school tomorrow because it's a holiday.
can't
doesn't have to
can
mustn't
We ... speak loudly in the library.
have to / must
don't have to
mustn't
can
He ... wear a uniform at school. It's a rule.
mustn't
can
doesn't have to
has to / must
You ... leave your bag here. It's not allowed.
don't have to
can
mustn't / can't
have to
We ... eat pizza for lunch today if we want to.
have to
can't
can
mustn'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!
must
don't have to
mustn't
I ...... make my bed every morning. I know my parents need help at home.
can
don't have to
must / have to
You ...... help me now. Mum helped me this morning.
must
mustn't
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
mustn't
don't have to
They ...... study harder if they want to pass their exam.
don't have to
can't
must / have to
My husband is cooking tonight so I ...... do it!
don't have to
can
must
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
mustn't
must / has to
