Can you show me Mr. Jaffer’s office please?- . But I don’t know if he is in at the

问题补充：

--- Can you show me Mr. Jaffer’s office, please?

--- . But I don’t know if he is in at the moment.

A. Thanks

B. Go on

C. Sure

D. You are welcome

答案：

A. Thanks

B. Go on

(答案→)C. Sure

D. You are welcome

解析：题意是“你能告诉我Mr. Jaffer的办公室吗？当然，不过我不知道他此刻是否在办公室”。只有sure符合题意。