A：Hey, Ann. You don't have a pen, do you?嗨，Ann，请问你有笔吗?
B：Sure, here you go.当然，拿去吧。
A：Thanks. I don't suppose you have some paper, too.谢谢，那请问你有纸吗?
B：Of course. There you are.当然有，在这里。
A：Thanks so much. I owe you one.真谢谢你，我欠你一份情。