Решите все упражнения, обьясняю почему и выделяю слова ключи. ОЧЕНЬ НАДО! ПОМОГИТЕ!

1. is riding 2. reads 3. is writing 4. draws 5. are running 6. come 7. am watching 8. make 9. are listening 10. has sent 11. am not watering 12. doesn't call 13. aren't playing 14. doesn't go 15. aren't helping 16. haven't known 17. isn't buying 18. isn't learning 19. don't meet 20. isn't eating 21. are you receiving 22. does Ben lose 23. are they standing 24. has kate worn 25. are you singing 26. has she driven 27. are they eating 28. has tina got 29. is he skiing 30. do you feel 31. is Nick drinking