Modal Verbs of Certainty and Possibility Quiz
Preview:
He could _____ late – it depends how long he has to work.
A. be
B. have been
They might _____ on the bus – I don’t think they’ve decided yet.
A. go
B. have gone
She must ______ all day because I haven’t seen her.
A. have worked
B. be working
We must ______ the tickets – I can’t find them!
A. lose
B. have lost
They may _____ the stones in another area.
A. have found
B. found
He _____ studying because I didn’t see him outside.
A. can have been
B. must have been
They _____ just discovered how the temple was built.
A. may have
B. can have
They _____ spoken to him because he knew nothing about the party.
A. can’t have
B. must have
She could _____ by bus but I thought she was taking the train.
A. have gone
B. go
She can’t ______ at the gym because she hurt her ankle.
A. have been
B. be
She _____ to afford the tickets.
A. can’t be able
B. may not be able
We _____ if we had practised more.
A. might have won
B. must have won
He must _____ about his tests next week.
A. have been worried
B. be worried
I suppose he _____ be with his dad.
A. could
B. can
You _____ tired. You’ve been sleeping for hours.
A. can’t have been
B. can’t be
That _____ his dog because I saw him taking it for a walk.
A. can’t be
B. must be
He set off ages ago. He ______ got there by now.
A. must have
B. can’t have
It ______ very easy for him to tell her.
A. couldn’t have been
B. mustn’t have been
They can’t _____ yet – it takes three hours to get there.
A. have arrived
B. arrive
She could _____ more polite, but I think she was in a bad mood.
A. have been
B. be
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