Complete the sentences with the correct superlative form of the adjectives in the box : difficult, beautiful, delicious, interesting, valuable, boring, polluted, amazing 1. Prague is...city I've ever seen 2. What's...book you've ever read? - Harry Potter and the Sorcerer's Stone. I really love it 3. The Grand Canyon is...sight I've ever been 4. Many climbers consider K2 is...mountain to climb, not Mount Everest 5. That was...movie I've ever seen. I almost walked out in the middle 6. Please give me your recipe. That is...cake I've ever eaten 7. Fresh air doesn't exist in New Delhi at the moment. It is...city on Earth right now 8. That is...painting in the art gallery. It's worth a milion dollars