We have casual Friday at the office so we ________ wear smart clothes on that day.
don't have to
He _____________ get to work by 9am.
must / has to
You ____________ smoke here. It's forbidden.
mustn't
Children ____________ be careful on the internet.
must / have to
You _______ wear a helmet when you ride a bike.
must / have to
She ____________ clean her room yesterday before she could go out.
had to
You _________ do this job without proper training, it´s illegal.
mustn't
She ____________ finish her work today. She can finish it next week.
doesn't have to
He __________ wear a suit and tie at the office, it´s mandatory.
must / has to
Mark __________ be rude to the boss or he will lose his job!
mustn't
He _________ speak loudly at the cinema.
mustn't
They _______ go to school yesterday because it was Sunday.
didn't have to
You ____________ spill liquid on electronic devices.
mustn't
He __________ leave until he finishes his work.
mustn't
He _______ do a lot of homework last weekend.
had to
You __________ tell anyone my secret. I don't want anyone to know.
mustn't
