1 big - bigger
2 happy - happier
3 nice - nicer
4 tall - taller
5 fat - fatter
6 small - smaller
7 clever - cleverer
8 funny - funnier
9 short - shorter
10 thin - thinner
11 slim - slimmer
12 fast - faster
Ответ: bigger, happier, nicer, taller, fatter, smaller, cleverer, funnier, shorter, thinner, slimmer, faster