Complete the sentences using the correct form (where necessary) of the given words in brackets (building, population, traffic, pollution, noisy, crowded.) I want to move to the country because it is 1). and 2) in the city where I live. There are a lot of tall 3). in New York.
Our city has a 4)
of over 2 million people.
Now big cities have problems with 5) 6) and
