Тут неправильно написаны степени сравнения:1. She is the beautifullest girl in our class. She is the most beautifull girl in our class. 2. This house is the niceest.This house is the nicest.3.Dogs are more intelligenter than mice.Dogs are more intelligent than mice.4. A cheetah is the faster animal.A cheetah is the fastest animal.5. An elephant is more strong than a horse.An elephant is stronger than a horse.