You __________ cross the roads without looking. It's dangerous.
mustn't
You ________ use lifts in case of fire.
mustn't
My mum _________ wash the dishes. I did it.
doesn't have to
Your hours will be 9-5 Monday to Friday. You ________ work at the weekends.
don't have to
Doctors sometimes _________ work at the weekend.
have to
The speed limit is 120 km/h. You _______ drive faster.
mustn't
This river is dangerous. You __________ swim in it.
mustn't
Students _________ listen their teacher.
must
You ___________ use your mobile phone during the lesson.
mustn't
You ___________ have to come if you don't want.
don't have to
You _______ forget your umbrella. It is going to rain.
don't have to
We _________ to hurry. We have a lot of time.
don't have to
This museum is free. You ____________ pay.
don't have to
Alice __________ get up early today because it's a holiday.
doesn't have to
Jane _______ to wear a school uniform. They can wear jeans or dresses at her school.
doesn't have to
I _________ tell this secret to anyone.
mustn't
The exams are next week. I ____________ work harder.
must
Sorry, I ________ go. I don't want to be late.
have to