根据短文内容，用方框中所给的词填空。

area   big   have   in   second   and   shop

There are three special things about a city. The first thing is about its population. A 1_______ city may
have millions of people while a small city may 2_______ only twenty thousand. The 3_______ special thing
about a city is that it has a large  4 _______. A city takes up a lot ofland. People 5_______ the city are close
together. That is the third thing that makes cities special. In large cities, there are thousands 6_______
thousands of buildings. The buildings are very close together. Many people live, work, or 7_______ in each
building. All these people use the streets and sidewalks. They use the parks and playgrounds.

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