--- Excuse me sir. Would you do me a favour? --- Of course. What is it?　--- I if you co

问题补充：

--- Excuse me, sir. Would you do me a favour?

--- Of course. What is it?

--- I if you could take me to the station.

A. would wonder

B. did wonder

C. was wondering

D. had wondered

答案：

A. would wonder

B. did wonder

(答案→)C. was wondering

D. had wondered

解析：某些动词（如：wonder, hope, think等）常用过去进行时表示委婉的语气。