Предложения все неправильные нужно сделать истинными:
a mouse is larger than a cat
a peacock is the most dangerous bird in the moscow zoo
mice are heavier than dogs
ostriches can't fly.
ostriches are the smallest birds
the largest animal in the world is the dinosaur
a shark's ears are very long
a giraffe is faster than a cheetah
the blue whale is the largest fish
the asian elephant is smaller than the nile crocodile
alligators are more dangerous than crocodiles
all pigs are pink