Modal Verbs

It's against the rules. You ... do it.

Sorry. I am not able to come to your place.

Mike isn't allowed to drive dad's car.

It's a bad idea to swim on a cold day.

It's possible that some answers ...

She _____ take part in the competition because she broke her leg

Who is behind the door? I'm not sure. It ___ be John.

I got lost. ___ you help me?

My brother ___ to stay in bed. He caught a cold

He was a good swimmer, so he _____ swim to the river bank.

He _____ arrive early yesterday.

You _____ check out now if you want.