He ________ know the answer, he's the best in the class.
must
He ______ be in class. I saw him at the library a minute ago.
can't
I think there ______ a mistake in your tax return. You should check it.
may be or might be
Sorry, but I'm not Connor. You ______ confusing me for someone else.
might be
What happened?
He/She might have dropped it.
What happened?
She might have been studying.
What happened?
It must have rained.
What happened?
They must have played in the mud.
What happened?
She must have won the competition.
What happened?
He might be disappointed.
What happened?
She must have broken/split up with her boyfriend.
What happened?
He must be hungry.
What happened?
She might have won the lottery.
What happened?
The baby must have got frightened.
Where is Dominic? - I'm not sure, he ......................... in the supermarket, he left a while ago.
might be
Paul is behaving in a very unusual way. I think he _________ drunk again.
can't be
can be
might be
