Where's Helen? I don't know. She _____ be at the office.
may
can't
must
There is a lift in the building, so we _____ climb the stairs.
don't have to
mustn't
can't
shouldn't
Paul is enjoying his new job. He _____ travel a lot.
should
has to
could
I think everybody ___ learn a foreign language.
might
mustn't
should
have to
You ______ take an umbrella with you in case it rains.
ought to
has to
might
can
I’m not working tomorrow, so I _______ get up early.
mustn't
shouldn't
can't
don't have to
The food is really good at that restaurant. They _____ have a great chef.
have to
must
can't
I _____ come and see you tomorrow if you like.
should
must
have to
can
It’s later than I thought. I _____ go.
must
has to
could
shouldn't
Who's that man with Emily? I'm not sure. It ______ be her brother.
might
must
can't
can
We had a lovely room in the hotel. We _____ see the lake.
could
can
may
might
Whatever you do, you ______ touch that switch. It’s very dangerous.
musn't
don't have to
shouldn't
may not
She _____ be a doctor! She looks far too young.
shouldn't
can't
couldn't
musn't
Sue drives everywhere. She never walks. She ______ use her car so much.
ought not to
shouldn't
can't
musn't
Richard ____ wear a suit to work, but he usually does.
mustn't
shouldn't
doesn't have to
don't have to
Her life ____ be easy. She has four children and very little money.
can't
musn't
must
may
Excuse me a moment – I ____ make a phone call. I won’t be long.
am able to
has to
have to
may