25. sai: had i a... sửa thành i had a
26. sai:which sửa thành who
27. sai: but sửa thành because
28. sai taking sửu thành take
29. hoa asked me where i would spend my holiday
30. He did not study hard so he got bad marks
31. i wish i lived near my school
32. the clothes have been washed by her mother for 2 hours
33.Mr.Brown is disappointed that people have spoiled this area
34. His village lies near the foot of the mountain and by the river