He works in a call-centre and he sometimes ______ work at night.
must
shouldn't
should
has to
I think we ........................ go now. It's late.
must
should
have to
I ................ wear a uniform when I was at school.
have to
had to
must
You ___________ put your phone into flight mode when you fly.
must to
must
should
have to
You ...................... brush your dog's hair regularly.
must
should to
have to
You ___________ get a visa to visit the USA.
shouldn't
must
have to
should
Do you ...................... wear a tie for school?
must
have to
has to
You ............ park here. It's an emergency exit.
must
shouldn't
mustn't
Passengers .................. fasten their seat belts.
must
should
have to
The museum is free. You ......................... have to pay.
don't have to
mustn't
shouldn't
If you can't sleep, you .................. drink coffee before you go to bed.
mustn't
shouldn't
don't have
I think people ............... recycle more paper and glass.
should
have to
must
I __________ get up really early yesterday. I had a meeting at 8.00.
should
had to
must
have to
Mark's a salesman. He ............... travel a lot.
have to
must
has to