Những từ nào bạn điền sai hoặc chưa điền thì mik điền lại nhé :
far -> farther
fresh -> fresher
friendly -> more friendly
generous -> more generous
good -> better
happy -> happier
high -> higher
little -> less
long -> longer
modern -> more modern
old -> older
peaceful -> more peaceful
pretty -> prettier
quiet -> quieter
smart -> smarter
soon -> sooner
strong -> stronger
ugly -> uglier
warm -> warmer
wonderful -> more wonderful
young -> younger
