2. According to the passage, what causes traffic congestion in big cities?
Câu hỏi:
2. According to the passage, what causes traffic congestion in big cities?
a. A lot of city dwellers
b. Too many cars on the roads
c. Careless drivers
d. Less traffic signs on the streets
Trả lời:
2. Thông tin: As the population of a city increases, so does the number of cars on the road. Cities cannot always improve the number and size of their roads and highways to keep up with the number of cars. The result is traffic congestion, or traffic jams.
Chọn B
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