Modals of Deduction Exercise

He · be at work. I just saw him at the cafe.

They · be coming to the party. They haven't confirmed yet.

That · be true. It sounds impossible.

You look tired. You · have worked all night.

She · know the answer. She's an expert.

He · be joking. He always tells the truth.

It · rain later. The sky is very cloudy.

They · have left already. The lights are off.

She · be the new teacher. She looks too young.