Sure! Here are the sentences converted into reported speech:

1. They said they were learning English then.

2. Tom said his friend was coming the following week.

3. She said she would help her mum with housework that weekend.

4. The teacher said to his students they would have to finish all those exercises before the following week.

5. She said she had come back there early the day before.

6. Johnny said to his mother that he didn’t know how to do that exercise.

7. The children said they were waiting for the school bus.

8. Mary said she could not go to the movies with John.

9. The man declared he would be doing exactly the same work the following Monday as he was doing that day.

10. The woman said she was born in 1954 and had been living in that small town since she was small.

11. Tom said his teacher wanted to have a talk with me the following morning.

12. Our teacher said the Second World War had broken out in 1939.

13. Linh said if her father repaired the bike then, she would ride the bike to school that afternoon.

14. Binh said he would have passed the exam if he had tried his best.

15. The young man said to her if she didn’t agree with him then, he wouldn’t meet her anymore.

16. I said to the boy if he wasn’t doing homework, what he would do next.

17. Quynh said to An if her father weren’t a billionaire, she could save her money.

18. We said to Xuan we wouldn’t go camping if her family didn’t join us.

19. Hoang said if his parents hadn’t given birth to him fifteen years ago, he wouldn’t have seen the Earth.

20. He said to his brother if a stranger appeared, what he would do.

21. Van said if he hadn’t missed the bus the previous morning, he wouldn’t have been late at school.

22. Khanh said to Thao if she had had breakfast, she wouldn’t be hungry then.

23. The assistant asked me to leave my address with the secretary.

24. The manager told the client to phone him for an answer the following day.

25. The librarian reminded the student not to leave those books on the table and to put them back on the shelf.

26. The nurse told the child to be a good girl and sit quietly for five minutes.

27. My companion advised me to leave my things there.

28. She reminded me not to forget to send my parents her regards.

29. The teacher encouraged Eric to join the football team.

30. My sister reminded me to remember to lock the door before going to school.

1. They said they were learning English then.

2. Tom said his friend was coming the following week.

3. She said she would help her mum with housework that weekend.

4. The teacher said to his students they would have to finish all those exercises before the following week.

5. She said she had come back there early the day before.

6. Johnny said to his mother that he didn’t know how to do that exercise.

7. The children said they were waiting for the school bus.

8. Mary said she could not go to the movies with John.

9. The man declared he would be doing exactly the same work the following Monday as he was doing that day.

10. The woman said she was born in 1954 and had been living in that small town since she was small.

11. Tom said his teacher wanted to have a talk with me the following morning.

12. Our teacher said the Second World War had broken out in 1939.

13. Linh said if her father repaired the bike then, she would ride the bike to school that afternoon.

14. Binh said he would have passed the exam if he had tried his best.

15. The young man said to her if she didn’t agree with him then, he wouldn’t meet her anymore.

16. I said to the boy if he wasn’t doing homework, what he would do next.

17. Quynh said to An if her father weren’t a billionaire, she could save her money.

18. We said to Xuan we wouldn’t go camping if her family didn’t join us.

19. Hoang said if his parents hadn’t given birth to him fifteen years ago, he wouldn’t have seen the Earth.

20. He said to his brother if a stranger appeared, what he would do.

21. Van said if he hadn’t missed the bus the previous morning, he wouldn’t have been late at school.

22. Khanh said to Thao if she had had breakfast, she wouldn’t be hungry then.

23. The assistant asked me to leave my address with the secretary.

24. The manager told the client to phone him for an answer the following day.

25. The librarian reminded the student not to leave those books on the table and to put them back on the shelf.

26. The nurse told the child to be a good girl and sit quietly for five minutes.

27. My companion advised me to leave my things there.

28. She reminded me not to forget to send my parents her regards.

29. The teacher encouraged Eric to join the football team.

30. My sister reminded me to remember to lock the door before going to school.