Use the right modal verb in the correct form.

1. You ... knock at the door. I have got the key. 2. You ... see the film. It is really interesting. 3. ... I ask you a question? — Please, do. 4. When I was five, I ... read and write. 5.The buses were all full. I ... go on foot. 6. Students ... use dictionaries while doing the test. It’s forbidden. 7. I have lost the keys. I ... enter my flat. 8. You ... put on a coat. It is going to be warm. 9. When her parents were away, she ... cook all her meals herself. 10. ... I come in? — I’m afraid not.