In the following sentences use one of + a superlative + a preposition.
1.He's a very rich man. He's one....................the country.
2.It's a very big castle. It's................Europe.
3.She's a very good player. She's...............the team.
4.It was a very bad experience. It was................my life.
5.It's a very famous university. It's................the world.