Complete the text, using the correct forms of the words in the box

Gap-fill exercise

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   afford      expanding      housing      seek      unemployment   
Urbanisation brings a lot of changes. First, people living in rural areas move to cities to better jobs and improve their lives. As a result, urban areas are . Second, more high-rise buildings are built to provide for the increasing number of urban residents. However, it is too expensive, so many people cannot to buy their own house. In addition, many people find it hard to find jobs in overcrowded cities, so rates there are rising.