第一节
1. W: Thanks for lunch. It was delicious. Next time it’s on me.
M: Don’t be silly.
W: I’m serious.
M: All right. Next time you treat.
2. M: What’s the chemistry homework Mr. Brown gave us today?
1. W: Thanks for lunch. It was delicious. Next time it’s on me.
M: Don’t be silly.
W: I’m serious.
M: All right. Next time you treat.
2. M: What’s the chemistry homework Mr. Brown gave us today?