第一句：You want to come?
A: Mark! Wait a second!
B: Oh, Laura.
A: I was just heading downstairs for a cup of coffee. You want to come? I've got some good news!
B: Sure, Let me just grab my wallet. You certainly do look happy this morning.
第二句：It's my treat.
A: Don't worry about getting your wallet. It's my treat.
B: This is a first! You must have won the lottery.
A: Oh, come on.
Are you free tomorrow?
When can we expect you for a cup of coffee?