Cheetahs are the _____ (fast) animals in the world.
Fastest
This math problem is ____ (difficult) than the last one.
More difficult
Today is the _____ (hot) day of the week.
hottest
This show is not ______ (popular) as the previous one.
as popular
My backpack is ______ (heavy) than yours.
heavier
Sarah is ____ (tall) than her brother.
taller
Dogs are usually ____ (friendly) than cats.
friendlier
A winter in Santiago is not ____(cold) as a winter in Punta Arenas."
As cold
