Réponse :

1) Pretty-->Prettier--> the prettiest

2)tall-->taller--> the tallest

3)interesting--> more interesting than -->the most interesting

4)déja complété

5)happy-->happier than -->the happiest

6)sad-->sadder-->the saddest

7)unusual-->more unusual-->most unusual

8)bad-->worse than -->the worst

9)short-->shorter than-->the shortest

10)amazing-->more amazing-->most amazing

11)red-->redder than-->the reddest

12)green-->greener than-->the greenest

13)sleepy-->sleepier-->the sleepiest

14)wonderful-->more wonderful-->most wonderful

15)terrible-->more terrible-->most terrible

16)large-->larger than-->the largest

17)hot-->hotter than--> the hottest

18)expensive-->more expensive-->most expensive

19)old-->older than-->the oldest

20)fascinating-->more fascinating-->most fascinating

Explications :