—Will you go to Nanjing by bus by plane?—By plane. It is expensive fast.A. or; butB. or;

问题补充：

—Will you go to Nanjing by bus by plane?

—By plane. It is expensive fast.

A. or; but

B. or; and

C. and; but

D. and; and

答案：

(答案→)A. or; but

B. or; and

C. and; but

D. and; and

解析：本题前句表示去南京是坐飞机还是坐公交车，表示选择，故用or；后句却表示做飞机，虽然贵，但非常快，表示的是意思的转折，用but，故本题选A。