No 1
1 old , older , the oldest
2 easy , easier , the easiest
3 busy , busier , the busiest
4 fast , faster , the fastest
5 expensive, more expensive, the most expensive
6 difficult , more difficult, the most difficult
7 good , better , the best
8 bad , worse , the worst .
No 2
1 fast as
2 less faster
3 more popular
4 less popular
5 the most popular
6 the least popular
7 as popular as
8 -
No 3
1 short
2 long
3 long
4 est
5 the most
6 as
No 4
1 most
2 more
3 most
4 as
5 the
6 less
7 most
8 least