Question 2:
a. Second, more high-rise buildings are built to provide housing for the increasing number of urban residents.
b. In addition, many people find it hard to find jobs in overcrowded cities, so unemployment rates are rising.
c. Urbanisation brings a lot of changes.
d. However, it is too expensive, so many people cannot afford to buy their own house.
e.First, people living in rural areas move to big cities to seek better jobs and improve their lives