I ...... study this weekend. It's my obligation as a student.
should
mustn't
must / have to
You ...... feed the animals in the Zoo. It's forbiden!
mustn't
must
don't have to
I ...... make my bed every morning. I know my parents need help at home.
should
don't have to
must / have to
You ...... do exercise every day. It's good for you!
shouldn't
should
must
You ...... listen to loud music. It's bad for your ears!
don't have to
shouldn'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.
should
must / have to
doesn't have to
You ...... eat fast food every day. It's bad for you!
must
shouldn't
mustn't
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!
must
shouldn't
don't have to
My husband is cooking tonight so I ...... do it!
must
should
don't have to
You ...... start a fire in this forest. It is prohibited.
shouldn't
mustn'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.
mustn't
must / have to
doesn't have to
