Ответ:

Ex 1

cheap - cheaper - the cheapest

interesting - more interesting - the most int..

hot - hotter - the hottest

heavy - heavier - the  heaviest

hark - harker - the harkest

famost - famoster - the famostest

big - bigger - the biggest

easy - easier - the easiest

Ex 2

good - better - the best

bad - worse - the worst.

many/much - more - the most.

little - less - the least

Ex 3

1 more popular

2 taller

3 more dif..

4 easier

5 highest

6 fastest

7 best

8 most diff..