I ...... study this weekend. It's my obligation as a student.
must / have to
mustn't
should
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.
must / have to
should
don't have to
You ...... do exercise every day. It's good for you!
must
should
shouldn't
You ...... listen to loud music. It's bad for your ears!
have to
shouldn't
don't 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.
must / have to
should
doesn't have to
You ...... eat fast food every day. It's bad for you!
mustn't
shouldn't
must
You ...... use your mobile phone in a plane.
should
don't have to
mustn't
They ...... study harder if they want to pass their exam.
must / have to
don't have to
shouldn't
If you are feeling sick, you ....... go to the doctor!
mustn't
should
shouldn't
If you have an important exam tomorrow, you ...... go to bed late!
don't have to
must
shouldn't
My husband is cooking tonight so I ...... do it!
should
must
don't have to
You ...... start a fire in this forest. It is prohibited.
mustn't
shouldn't
don't have to
If Tom wants to be a doctor, he ...... finish university.
must / has to
mustn't
doesn't have to
She ...... wake up early today - it's Sunday.
doesn't have to
mustn't
must / have to
