1 - cheap - cheaper - the cheapest

2 - healthy - healthier - the healthiest

3 - dangerous - more dangerous -the most dangerous

4 - many - more - the most

5 - good - better -  best

6 - noisy - noisier -  the noisiest

7 - narrow - narrower - narrowest

8 - expensive - more expensive - most expensive

9 - happy - happier - the happiest

10 - little - less than - at least

11 - far - further - furthest

12 - worried - more worried - most worried

2.  healthy

+ So sánh hơn : healthier

+ So sánh nhất : healthiest

3. dangerous

+ So sánh hơn : more dangerous

+ So sánh nhất : the most dangerous

4.  many 

+ So sánh hơn : more 

+ So sánh nhất : the most

5. good

+ So sánh hơn : better

+ So sánh nhất :  best

6. noisy

+ So sánh hơn : noisier

+ So sánh nhất :  noisiest

7.  narrow

+ So sánh hơn :  narrower

+ So sánh nhất : narrowest

8. expensive

+ So sánh hơn : more expensive

+ So sánh nhất : the most expensive

9. happy

+ So sánh hơn : happier

+ So sánh nhất :  happiest

10. little

+ So sánh hơn : less

+ So sánh nhất :  least

11. far

+ So sánh hơn : further

+ So sánh nhất : furthest

12. worried

+ So sánh hơn : more worried

+ So sánh nhất : the most worried