1. Josh is (old) I thought.

2. This exercise is (easy) that one.

3. This book is (good) the one we used last time.

4. Liz is (beautiful) her sister.

5. This house is (big) my old one.

6. Cuban coffee is (strong) American coffee.

7. That computer is (fast) mine.

8. I think science fiction books are (interesting) romantic novels.

9. Winter in New York is (cold) winter in Madrid.

10. Playing the piano is (difficult) playing the guitar.