看看下面这段小对话，体会一下日常对话里的反意疑问句。
Dialogue
A: Hey, what’s the matter? You don't look at all happy.
B: Of course not. How can I look happy when I have just lost my phone again!
A: I’m sorry to hear that. Hmmm…you haven’t mislaid it somewhere, have you?
B: No. I always put it in this little pocket in my handbag, but I couldn't find it when I got off the train!
A: Sounds like it might have been stolen while you were on the train, doesn’t it?
B: Yes, what bad luck! You haven’t got a spare that I can borrow, have you?
A: No sorry, I haven’t.
本课还有更多例句和练习让大家体会一般反意疑问句的方方面面。