Modal verbs I

There's someone at the door. It _______ be the postman.

• must

• can

• should

• doesn't have to

Don't worry, you _______ pay now.

• mustn't

• don't have to

• can't

• shouldn't

I think you _______ take a pullover with you.

• had better

• can't

• mustn't

• might

Sorry. I can't stay any longer. I _______ go.

• might

• may

• have to

• could

It was 5 o'clock an hour ago. Your watch _______ be right.

• can't

• mustn't

• is not allowed to

• is not able to

My son ________ be home by now. Where can he be?

• has to

• would

• should

• could

I think your thumb is broken. You _____ go to the emergency room.

• might

• could

• ought to

• can

You _____ come too early. We won't leave until nine o'clock.

• has to

• must

• needn't

• can't

The train was badly damaged in the crash, but the passengers _______ get out through a broken window.

• can

• had to

• ought to

• were able to

Children ______ be accompanied by an adult at the zoo.

• ought to

• must

• would

• mustn't