Completar frases Urban problemsVersión en línea Complete the text with the correct words por Fanny Mendes 1 graffiti jam space traffic traffic concrete noise air smoke land pollution trash Cities are full of cars , there's often on the roads . This often leads to a , which means delays . The cars cause , along with the from factories , and dirty is bad for our health . You can also hear the of the traffic all over the city . Cities can be ugly , too . Most of the has high - rise buildings and sidewalks on it . And when people share the same , they produce tons of garbage . Some people leave their on the street . There's on some buildings , and even if it looks nice , business owners usually don't like it .
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