Complete each space with one of the words given below. Make changes if necessary. (1.0 pt)

on probable product SO

If you live in a city, you will (1)………. see many people, hear the noise of traffic, and smell the pollution from cars and factories. We are living in a new era in the history of the world. Before this, most people were (2) ………. they lived in small communities in the country. Now many people are leaving the farms and moving (3) ………. the cities. They are looking for better jobs. As a result, the cities are growing very quickly. Most cities are becoming more crowded. People are driving more cars, burning more fuel, using more water, eating more food, making more garbage, and (4) ……….more things in factories than ever before. Life in modern cities can bring many opportunities, but also many difficulties.