6. Join the sentences using a non-defining relative clause. Make any necessary changes.
1. Ted is my friend. His mum is my mum's colleague.
Ted, whose mum is my mum's colleague is my friend.
2. Edinburgh is a beautiful city. My father was born there.
3. My next-door neighbours are really friendly. They used to live in Canada.
4. That was the final match of the season. It was our best season ever.
5. Freddie Mercury is my favourite singer. His songs are all-time classics.