Complete the sentences. Put in the words in the correct form.
Example: This is (modern) house in the town.
This is the most modern house in the town.
1. This book is (interesting) book you can find in the library.
2. I think this building is (beautiful) in the town.
3. The Petronas Twin Towers are (tall) twin towers in the world.
4. Buckingam Palase is (large) house in London.
5. What is (old) building in Moscow?