假设你刚从加拿大留学回来，根据下列要点提示，用英语写一篇文章向你的同学们介绍加拿大的情况：

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　　New York, London, Paris and other big cities are exciting places 1 .There are many interesting things to see and to do. You can go to 2 kinds of museums, plays and films. You can also go shopping to 3 things from all over the world.

　　But there are serious problems in big cities, 4 .The cost of living is 5 ,and there are too many people in some places of the big cities. Every year many people move to the cities because they can 6 find work there, to study at good schools, and to receive good medical care (医疗保健). But 7 these people cannot find work or a good place to live in. Also, too many people in a small 8 make it hard to keep the cities 9 and clean.

　　Some people enjoy living in big cities, others do not. 10 people move to a big city, they should think about the problems of living there.

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　　New York, London, Paris and other big cities are exciting places 1 .There are many interesting things to see and to do. You can go to 2 kinds of museums, plays and films. You can also go shopping to 3 things from all over the world.

　　But there are serious problems in big cities, 4 .The cost of living is 5 ,and there are too many people in some places of the big cities. Every year many people move to the cities because they can 6 find work there, to study at good schools, and to receive good medical care (医疗保健). But 7 these people cannot find work or a good place to live in. Also, too many people in a small 8 make it hard to keep the cities 9 and clean.

　　Some people enjoy living in big cities, others do not. 10 people move to a big city, they should think about the problems of living there.

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