21. Tinh told Lien that she might go shopping with her friends
22. Bao said he had to do more grammar exercise
23. The girl said they ought to finish their homework that night
24. The leader of the group said that they would play with their best to win the prize for their school
26. The coach told the players to train harder for the next match
27. Tam's sister told him to help her to clean the house
28. Hoa's parents said that they would visit her that summer
30. Mary told her friend that she would expect to see him/her the next Wednesday