1 sadder saddest
2 less least
3 father farthest(further furthest)
4 prettier prettiest
5 closer closest
6 more interesting the most interesting
7 worse worst
8 funnier funniest
9 friendlier friendliest
10 tidier tisiest
第九个是friendly吧
1 sadder saddest
2 less least
3 father farthest(further furthest)
4 prettier prettiest
5 closer closest
6 more interesting the most interesting
7 worse worst
8 funnier funniest
9 friendlier friendliest
10 tidier tisiest
第九个是friendly吧