XI. ...

1. There are many cities in the world which are facing overcrowding.

2. Saigon is the most populous city in Vietnam with a population of 8,6 million.

3. Overpopulated cities are usually overcrowded in public transport, especially in rush hour.

4. A large number of people move from the countryside to the city in recent years.

5. There are more job opportunities in big cities than in rural areas, aren't there?

6. Local governments have to find a solution to the housing shortage.

7. A lot of people who are homeless suffer from health problems.

8. Over the next ten years, the population of the world will grow to 1 billion.

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