Rewrite the sentences in reported speech.

Rewrite the sentences in reported speech:

1. He said that he was living in Berlin then.
2. She said that her mother wasn't very well.
3. Nick said that he didn't know what Nina was doing.
4. Tom said that I could come and stay at his place.
5. Mother said not to open the window.
6. He asked me if I had taken his bike.
7. She asked his colleague if Mr. Smith could help Mary.