Написать 7 предложений, используя степени сравнения прилагательных (например: jane is taller than alice)

1. Cheetahs are the fastest animals in the world.
2. This book is more interesting than that one.
3. My mum is the most beautiful woman in the world.
4. Children from our class are friendlier than in class 5B.
5. What is the highest mountain in the world?
6. What is the longest river in America?
7. This day is the worst of all.