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