1. John said that he couldn't chat because he was working then. 

2. David said that his brother had written that book the previous year.

3. Jane told us to have dinner with Rachel the following day.

The students told me to work very hard that day and it had paid off.

5. Tom told me to see i the following Friday.

6. They told Maria to write to her later that week.

7. Nicky said that he/she didn't know where Bill was living at that moment.

8. Susan said that her parents had left for London at 5 p.m the previous day.

9. Nick told Sarah to see she/he the following week before she/he left.

10. Matt told me not to attend the meeting two days before. 

11. He said that they were doing an experiment then.

12. Mia told me to hand in the report the following day.

13. He told me to be a lawyer when he grew up.

14. Mr.Minh told that he didn't open this shop that day. 

VIII. 

1.“I can’t Chat because I am working now,” said John.

=> John said that he couldn't chat because he was working then.

2. “My brother wrote this book last year,” David said to me.

=> David told me his brother had written that book the previous year.

3. Jane said to us, ‘I'm having dinner with Rachel tomorrow.”

=> Jane told us she was having dinner with Rachel the next day.

4. “We’ve worked very hard today and it has paid off,” the students said.

=> The students said that they had worked very hard that day and it had paid off.

5. “I’ll see you here next Friday,” Tom said to me.

=> Tom told me he would see me there the next Friday.

6. “We’ll be writing to you later this week,” they said to Maria.

=> They told Maria they would be writing to her later that week.

7. “I don’t know where Bill is living at the moment,” said Nicky.

=> Nicky said he didn't know where Bill was living at the moment

8. “My parents left for London at 5 p.m yesterday,” Susan said.

=> Susan said her parents had left for London at 5 p.m the previous day.

9. “I may see you next week before I leave,” Nick said to Sarah.

=> Nick told Sarah he might see her the next week before he left

10. “I didn’t attend the meeting two days ago,” said Matt.

=> Matt said he hadn't attended the meeting two days before.

11."They are doing an experiment now" he said

-->He said that they were doing an experiment then

12."You'll hand in the report tomorrow," Mia said to me

--->Mia told me I would hand in the report the next day.

13."I'll be a lawyer when I grow up," he told me

-->He told me he would be a lawyer when he grew up.

14." I doesn't open this shop today," MrMinh said

-->Mr. Minh told that he dind't open that shop that day