Working outdoors makes people _____ (happy).
happier
Lifting _____ (heavy) weights makes you exercise harder.
heavier
Weather in summer is _____ (hot) than in winter.
hotter
The Japanese are _____ (old) society in the world.
the oldest
The Amazon is not _____ (long) river in the world. The Nile is...
the longest
Which country is _____ (happy) place in the world.
the happiest
This was _____ (crazy) film I have seen in my life!
the craziest
Whale - Shark - Fish
Lion - Tiger - Monkey
Wolf - Fox
Deer - Tiger
Cockroach - Butterfly
Bat - Bug - Bee
Panda - Polar bear
Cat - Dog - Mouse
Ostrich - Parrot - Eagle
