Помогите решить. Нужно С и Е

C. 16. to join. 17. cleaning. 18. use. 19. buying. 20. taking. 21. to starting. 22. wondering. 23. to send. 24. donate. 25. to go. E.  31. protection.  32. disappearance. 33. existence. 34. reference. 35. donation.