[单项选择]{{B}} Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. Public Buses are fast and cheap transportation tools. B. Parking is becoming a big problem. C. Subway trains are even safer than taxies. D. Taxies are more convenient than buses.
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[单项选择]{{B}} Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. At the doctor’s office. B. At a restaurant. C. At a drug store. D. At home.