1.tall->taller->tallest
2.cold->colder->coldest
3.thin->thinner->thinnest
4.strong->stronger->strongest
5.wet->wetter->wettest
6.old->older->oldest
7.clean->cleaner->cleanest
8.cheap->cheaper->cheapest
9.cool->cooler>coolest
10.happy->happier->happiest
11.noisy->noisier->noisiest
12.easy->easier->easiest
13.awful->awfuler->awfulest
14.delicious->more delicious->the most delicious
15.famous->more famous->the most famous
16.beautiful->more beautiful->the most beautiful
17.bad->worse->worst
18.much->
19.little
20.good->better->best
Bài tập
1.July is hotter than June
2.My house is older than your house.
3.Nga is thinner than Lan.
4.The boys are stronger than the girls.
5.This book is cheaper than that book.
6.Mai is the youngest child in her family.
7.Fansipan is the highest mountain in Viet Nam.
8.Linh is the best student in my class.
9.Ba is more talkstive thhan Long.
10.This film is more interesting than that film.
11.This dress is the most expensive in this shop.
12.Hoa is the most hard-working student in our class.
