Excuse me, may I ask you something?
打擾一下,我可以問你一些事嗎?
A. Sure, how can I help you?
A.當然可以,有什么我可以幫到你?
B. No, go ahead.
B.沒事,繼續。
C. I'm sorry I was late today.
C.對不起我今天遲到了。