Modals for speculation

They ____ be exausted.

• must

• could

• may

• might

• can't

He ____ be sick. Look how healthy he looks.

• must

• could

• may

• might

• can't

She _____ be looking for important information about the class.

• must

• could

• may

• might not

• can't

They _____ be siblings. It's possible.

• must

• could

• may

• might

• can't

They ____ be studying. But I don't know.

• must not

• couldn't

• may be

• might not

• can't

Choose the best option.

• He can't be swimming.

• He can't be cooking.

• He can't have a trophy.

• He can't be an amateur.

• He can't play soccer.

Choose the best speculations.

• They must be eating pop corn.

• They must be watching a movie.

• They could be in the best part of the movie.

• They might be friends.

• It can't be a cinema.

She might be surprised.

• Correct

• Incorrect