单项选择题 What do Ellen’s parents do for a living

单项选择题 Which of the following apartments would Bill be most interested in A．One of ＄400 a month near the university. B．One of ＄450 a month near the city center. C．One of ＄500 a month on a bus line. D．One of ＄540 a month on the campus.

单项选择题 Low carbon life is a green lifestyle that A．improves human’s responsibility. B．supports low energy consumption. C．hopes to change the environment. D．slows down human’s pace of life.