1 Nick is the happiest boy that I know.

2 Of the six cars, I like the silver one best.

3 Jane's notebook is cheaper than mine.

4 This is the most delicious cheese-cake I've ever had!

5 This bookcase is more beautiful that that one.

6 Do you feel better today than yesterday?

7 I think my cat is the prettiest of all the cats in the world.

8 Steve jobs is more famous than Stephen Wozniak.

9 This week the weather is hotter than last week.

10 Our new house is more expensive than the old one.

11 Girls are usually cleaner than boys.

12 Chemistry was the hardest subject at school.