There aren't many bears here, but you ________ see one if you're lucky.
may / might / could
Andy's results are bad. He ________ work harder.
should
You ___________ cycle on the grass. It's illegal.
mustn't
She's crying. She ________ be very upset.
must
In two years' time, I ____________ able to drive.
'll be
Driving in a snow storm _________ be very stressful.
can / must
You __________ get up early. It's Saturday.
don't have to
He's always tired. He _____________ go to bed so late.
shouldn't
I'm not sure, but they __________ be from Sydney.
may / might / could
Italy are playing well, but Brazil are also really good. They ________, perhaps, win the World Cup.
may / might / could
She ___________ take the exam. She was in hospital.
couldn't
He ___________ be Joe's dad. They're the same age!
can't