. Поставьте глаголы, стоящие в скобках, в зависимости от смысла, в Present Indefinite, Present Continuous, Present Perfect.

 1. They are busy now. They are discussing an important question 2. Listen! Someone is knocking at the door. 3. The man who is smoking a cigarette is our English teacher. 4. Ann dislikes foreign food. 5. How do Ann and Peter travel to work? 6. Everybody in the class speaks English. 7. I can’t unlock the door. I have lost my key. 8. My friend has changed since I saw him last. 9. Who knows his address? 10. These students have passed a few tests this morning.