Put in the correct form of to be.
1. We … students now. 2. They … best friends in the class. 3. It … an interesting book. 4. Who … absent today? 5. He … a student. 6. What … she? 7. These … my pencils. 8. Where …this book? – It … on the table. 9. Mary … a girl. 10. This man … in the room. 11. How … you? – I … fine! 12. How … your friend? 13. … he your son? 14. It … my parents` car. 15. … they sportsmen? 16.Mathemetics … very difficult. 17. The dishes … on the table. 18. His teeth … white. 19. … my shirts washed yet? 20. Not many cities … as big as Moscow.

2. There … a telegram in the bag. 2. There … much snow this year. 3. There … a lot of stars and planets in space. 4. … there a lamp over the table? – Yes, there … . 5. … there any interesting stories in this book? 6. There … 4 seasons in a year. 7. There … nobody in the room. 8. There … many places of interest in London. 9. There … something on the shelf. 10. There … many beautiful flowers in our garden.