Here are the completed sentences for exercise 3:

1. Ian **said** that he had bought the tickets.
2. They **said**, 'It is a wonderful day.'
3. He **told** her, 'This is where I live.'
4. Paul **told** her that the sports centre was closed.
5. You **told** me that it was a good film.
6. My friends **told** me, 'You're crazy to do this!'
7. Betty **told** her teacher, 'I haven't got a pen.'

And here are the rewrites for exercise 4:

1. Kenneth said that he would be at Jim's.
2. Tom said that Tina was waiting for him outside.
3. Fred said that he only watched TV at the weekend.
4. Mum said that the washing machine wasn’t working.
5. Evelyn said that she was going to buy a new car.
6. Samantha told us that she was twelve years old.
7. Joe told his brother that he broke the window.
8. Dan said that he had ordered pizza.
9. Mark said to me that he had been painting his room.
10. Ryan said that they would have a great time at the party.