* Chuyển câu trực tiếp sang gián tiếp 

- Lùi thì ( hiện tại đơn -> quá khứ đơn, hiện tại tiếp diễn -> quá khứ tiếp diễn , hiện tại hoàn thành -> quá khứ hoàn thành ...)

- Thay đổi đại từ nhân xưng cho phù hợp ( I -> she, I -> he, my -> her, we -> they -> tùy vào ngữ cảnh và dịch theo nghĩa )

- Thay đổi từ chỉ thời gian và nơi chốn ( here -> there, tomorrow -> the next day, yesterday -> the previous day.... )

4 They said Trung was playing the piano beautifully.

5 She told me that I had to clean the floor then.

6 She said that her brother didn't like listening to Rock music.

7 They said that their teacher could speak 3 languages fluently.

8 The girls said that they were very proud of their school uniform.

9 The woman said her daughter would take the English exam at the language center the next day.

10 Hoa told me that there was an inetresting movie on TV that night.

11 She told her mom that her friends were going to visit her the next week.

12 Minh said that his grandmother was watching the weather forecast then.

13 Their monitor said that they would visit Nguyen Du memorial the next Sunday.

14 Mary told her parents that she was having a wonderful time with her parents there.

15 A journalist said that the students should not wear casual clothes at school.

16 Nam said that he would like to go abroad for study when he finished that course.

17 They said that many people didn't believe in the existence of the UFOs.

18 Our teacher told us that we would collect the garbage around the school yard

19 My friend said that wearing ao dai made me look more graceful.

20 They said that they would not wait for me if I came late the next morning.