1.less pollution
2.There will be
3.more than
4.every family will have
5.I think we will live in the sea.To my left is the tallest building of our country and to my right is the biggest bank in the world.Cars can drive either in the sea or in the sky and they can also go to space through the bridges.At that time our city will be very beautiful and there will be more birds.We will have such a city in one hundred years.