They __________ be twins. They are absolutely identical.
can't
must
might
He_________ be American. He doesn't speak english.
can't
might
must
He _______ be a tourist. He's carrying a camera and a guide book.
must
can't
might
He _______ be going to the gym. He's carrying a sports bag.
must
might
can't
Carol ____ be hurt. She just fell off the stairs.
might
must
can't
He ______ be enjoying the party. He isn't talking to anybody.
might
can't
must
He _________ have a job. He's looking for job ads in the newspaper.
might not
must not
can't
She ______ be cold. She isn't wearing a jacket.
might
must
can't
He ____ be married. He's wearing a wedding ring.
must
might
can't
Their team ____ be winning. The crowd looks very happy.
can't
might
must
That _______ be the campsite. I see a lot of tents.
can't
must
might
She slept all day, so she _____ be tired.
must
might
can't
She _______ be a college student. She's not old enough.
can't
must
might
He _____ be lost. He's looking at a map.
must
might
can't
He _____ be a businessman. He isn't wearing a suit.
might
can't
must