22. If he didn't write sth on the white wall, his father wouldn't punish him.
23. Coffee was being drinking at the café by her friends.
24.The books have been returned to the library by Kathy
25. The report was written by Mr Brown yesterday
26. History is taught by Mr Green
27. Their research has to be finished this weekend.
28. She told me she could speak 5 languages
29. Tom told Linda he would receive a letter from Mary
30. Mary told Richard she was going on holiday in Dalat
31. Tom said he didn't know their name
32. She  said she had finished the report