Complete the sentences with the correct form of the adjectives in brackets. 1.1. Cities today have got (many) problems than they had 50 years ago. 2. The air isn't as (clean) as it used to be. 3. Bellview Park is (large) than Belmont Park but it isn't as (large) as Greenfield Park. 4. 'Earth Day' is ____ (popular) than other special days in our school. 5. My house is _______ (far) from the city centre than Tina's house.​