比较级 最高级
2:fatter; fatest
5:happier; happiest
6:wetter; wetest
7:more; most
9:less; least
10:worse; worst
11:thinner; thinnest
12:farther/further;farthest/furthest
13:earlier; earliest
14more careful; most careful
15:more important; most important
16:busier; busiest
17:more; most
18:better; best
19:better; best
20:more quickly; most quickly