1. I am reading.
2. He isn't writing.
3. We are not working.
4. Are you reading?
5. Is he sleeping?
6. Kolya and Misha are playing football.
7. Kate is playing the piano.
8. She is not singing.
9. My sister is sleeping.
10. Is Dad drinking tea?
11. Are your parents drinking tea?
12. I am not sleeping.
13. She is sitting at the table.
14. We are doing the exercise.
15. We are not swimming.
16. Are they playing in the yard?
17. Nina and Anya are washing the floor.
18. Kolya is helping mom.
19. Are you helping dad?
20. My sister is reading an interesting book.
21. They are going to school.
22. Are you going to school?
23. Is it working?
24. Is your grandmother going to the store?
25. He is buying sweets.