1. The Arctic Ocean is (cold) than the Indian Ocean. 2. This book is (interesting) of all I have read this year. 3. My sister speaks English (bad) than I do. 4. A bus is(fast) than a tram. 5. The (tall) trees in the world grow in California. 6. Who is the (attentive) student in your group? 7. He was the (fat) man in the village. 8. Bobby was a (quiet) child. He was (quiet) than his sister. 9. Which is the (hot) month of the year? 10. He was (careful)than I. 11. It is (easy) to swim in the sea than in the river. 12. This is the (small) room in our flat​