He ________ know the answer, he's the best in the class.
must
You_______ be right, but it's better if we check.
might
He ______ be in class. I saw him at the library a minute ago.
can't
I don't know who's at the door. It _________ be John.
might
What happened?
He/She might have dropped it.
What happened?
It must have rained.
What happened?
She must have won the competition.
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.
I'm not sure where Dominic is. He ......................... in the supermarket.
might be
