It will be bigger because more and more people will move to the city. And there will be enough apartments for them to live in. The environment will become more beautiful, for people will plant more trees and grow more flowers in the city. To make the air cleaner, people will travel by bus or by bike more often. The roads won't be as crowded as they are today. Also, people will be happier. They'll spend more time improving themselves, such as learning a new language, playing a new sport and reading more books. They will try their best to build a better life together.
