He has been working all night. He ......... be tired.
might
must
can't
I wonder who is at the door. It ............ be mom, she still at work.
might
can't
mustn't
The baby just had his bottle of milk. He ......... be hungry!
mustn't
won't
can't
The man holding the baby, he ............ be his father.
can
might
could
may
Adrianne is good at acting. She ........... be an actor one day.
might
going to
can
will
