Mike: Hi, Peter. I got an A in my Math test last week. Thanks for helping me preparing for it.
Peter: You are welcome. You deserved it.
Mary: How about we celebrate it in my house tonight?
Mike: I'd love to. But I promised my sister to take her to a movie tonight. I am very sorry.
Peter: I also have an appointment with my doctor. Sorry too.
Mary: Don't mention it. How about tomorrow?
Mike: Works for me.
Peter: Sounds great.
Mary: Great, I will see you then.
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