Раскройте скобки, используя данные прилагательные в одной из степеней сравнения: 1. Cats are sometimes (intelligent) than humans.
2. Kate is (young) than Mary.
3. The (good) things in life are free.
4. London is one of the (big) cities in the world.
5. This sentence isn’t so (difficult) as the first one.