17)
    A: I'll get the check.
    B: No, let me pay this time.
    A: No, I insist.
    B: Well, thank you very much.
    A:我來付帳。
    B:不，這次由我付。
    A:不，還是我來。
    B:好吧，那就謝謝你啦?
    18)
    A: This lunch is on me today,
    B: I think you got it last time.
    A: It's my pleasure.
    B: That's very nice of you.
    A:今天這頓飯算我請客。
    B:我記得上回也是你請的。
    A:我請得心里高興。
    B:既然這樣，那就多謝了。