1. It's the most beautiful country in the world.

2. How much is the cheapest one?

3. It's the coldest place in England.

4. It's the most expensive city in Spain.

5. It was the worst

6. He is the tallest boy in our class.

7. не видно.

1. the most beautiful

2. the cheapest

3. the coldest

4. the most expensive

5. the worst

6. the tallest

7. тут не видно)