=>
25. He said that his brother had come there the day before. 
26. She said that she was learning Math then. 
27. They said that they were playing chess then. 
28. He said that his brother was sleeping then. 
29. My mother said that she was cooking then. 
30. Her father said that he was reading then. 
31. She said that she had been watching TV at that time.
32. He said that his parents had been having lunch at 11 the day before. 
33. He said that Lan and Mai had been doing their homework.
34. She said that their teacher had been waiting for the bus at that time. 
35. Christ said that he had been having a bath. 
36. She said that she had lost her keys. 
37. She said that her sister had just come back from New York. 
38. They said that they hadn't got married. 
39. He said that he had never been to England. 
40. She said that she hadn't finished her work yet. 
41. He said that his brother hadn't found a job. 
42. The children said that their parents hadn't come back. 
43. Our teacher said that he had bought a new car. 
44. Mr. and Mrs. Smith said that that was the best film that they had ever seen. 
45. Donna said that she had never eaten such a better meal than that. 
46. Mary said that she would call me that night.
47. Her parents said that they would go camping the following weekend. 
48. Peter said that his father could play the piano very well. 
49. Laura said that her sister could speak French. 
50. They said that they might come back the following Sunday.