电大英语3unit18形考答案

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fields, doctors, teachers, inventors, scientists, etc., which fasten the growing speed in the big city.

However,

When

the

population of people increased in the big city, the house cost is going up as the land is limited, also in hospital and school, people have to wait in a long queue to get their turn. And cars are getting popular nowadays, almost every family has a car in the big city, which caused the traffic jam time to time.

There are Both advantages and disadvantages of living in a big city, and not always big city is the best choice, sometime middle city has better living condition with less people.