14. He works every day.
15. I read books in the evening.
16. I don't read books in the morning.
17. I'm writing an exercise now.
18. I'm not writing a letter now.
19. They are playing in the yard now.
20. They aren't playing in the street now.
21. Are they playing in the room now?
22. He helps his mother every day.
23. Does he help his mother every day?
24. He doesn't help his mother every day.
25. Do you go to school on Sunday?
26. Is she working in a shop now?
27. Is he delivering furniture now?
28. Do you go to the opera with your friends? Who is your favourite opera singer?