Russia is the _______ (big) country in the world.
biggest
What's the ______(tall) animal in the world ?
tallest
Thailand is ______(small) than Australia.
smaller
A chicken is_____(big) than a mouse
bigger
Pacific Ocean is the ______(deep) in the world
deepest
A cheetah is _____(fast) than a horse.
faster
An ocean is ______(wide) than a river
wider
What is it ?
a river
What's it ?
waterfall
A _____is higher a hill.
moutain
A plane is ________(fast) than a car
faster