1 - healthy
2 - clean
3 - the worst
4 - taller
5 - larger
6 - shorter
7 - highest
8 - better
9 - higher
10 - most beautiful
11 - better
12 - longer
13 - shorter
14 - colder
15 - more diffucult
16 - easier
17 - busy
18 - cold
19 - fond
20 - colder
21 - the most interesting