问题补充：
---Excuse me, sir.Would you do me a favour? --Sure.What is it?
----I if you could tell me how to pronounce this English word.
A. had wondered
B. was wondering
C. would wonder
D. did wonder
答案：
A. had wondered
(答案→)B. was wondering
C. would wonder
D. did wonder
解析：根据语境，可知是指“我”在说“请帮个忙好吗”的时候，“我在想…”,所以用过去进行时.
