1. lesson (у)
class (з)

2. athlete
sportsman

3. mind

4. grapes

5. administrator

6. story (і)
story (о)

7. foot

8. need

9. birth

10. sweatsuit|tracksuit

11. reception

12. prepayment

13. cheek

14. jacket (suit)

15. flight (п)
flight (р)

16. thing

17. apple

18. mistake

19. title

20. lunch|dinner

21. level

22. heart

23. rush hour

24. entrance (в)
entrance (п)

25. mandarin, tangerine

26. food to go (-с)
take-away food (-ю)

27. floor

28. mouth

29. theme, topic

30. reader

31. island

32. leather

33. literature

34. charger

35. couple|pair

36. underpants

37. soul

38. corridor, hall

39. bookshop

40. Universe