13. has failed

14. volunteers 

15. Did you live 

16. was talking

17. were driving

18. was studying - were having

19. were dancing

20. fell - was painting

21. bought - cost

22. was waiting - arrived

23. was reading - heard - were playing

Hoa asked Lan if she liked sports.

She asked Nam if his sister and brother went to the same school.

She asked her mom if there were any oranges in the fridge.