I'm 100% sure he has lots of money. He _________ be rich.
must
Look! What is he doing? He ___________ be crazy! (100%)
must
They look mad. They _________ be angry at each other. (50%)
might/may/could
He already graduated high school. That's impossible. He ________ be older than 15. (0%)
can't
Who are they saying hi to? I don't know. He ________ be a friend of theirs. (50%)
might/may/could
Why didn't Jose come to class today? No idea. He _________ be sick. (50%)
might/may/could
Wow. He has a lot of trophies. He ________ be a good soccer player. (100%)
must
Wow. He is going to eat a big sandwich. Yeah, He _________ be really hungry. (100%)
must
That's very dangerous. He's driving a car! It _________ be possible! (0%)
can't
That's a nice car. It ________ be very expensive. (100%)
must
What's wrong with Pedro? I don't know. He ________ be nervous. (50%)
might/may/could
They look scared. They _______ be watching a scary movie. (100%)
must
Look at that couple over there. They ________ be on their honeymoon. (50%)
might/may/could
Who is that girl with Ernesto? I don't know. She __________ be his girlfriend. (50%)
might/may/could
