Ok ko cop mạng nhưng cho mik hay nhất nhé:

   Cities are one of the most popular places in any country, but living in the cities may have some advantages and some disadvantages. It's a very convenient place for studying or buying something,

but the disadvantages are noisy. Do you know why lots of old people don't want to live in cities course of theirs noise. Well, Some people living in the cities are deaf, because of trucks or other reasons. The second disadvantage thing is the pollution of the cities because of its vehicles, transportations or some buildings are not well covered, many people are afraid of pollution air so they move to the countryside to live, many people have lungs cancer because of the polluted air, mostly in the cities in the recent years.