1. Mary is a very hard-working student. In fact, she is.....................student in the class.

2.Bungee jumping is a very dangerous activity. It's..........................activity in the world.

3. January is a very cold month. It's..............................month of the year.

4. İzmir is a beautiful city. In fact, it's.................................city in Turkey.

5. The Nile is a very long river. In fact, it's..................................river in the world. ​