【单选题】The price of public transportation in Beijing has doubled twice since 1989, but it is still a bargain. Using the subway and minibuses used to show class status; now people of all classes take them, wh...
【简答题】Mary wants to buy a car but she doesn’t know what she wants. Robert, the salesman, is showing her around and introducing different types of cars to her. Complete the conversation with the information ...