1. A. You are welcome.      B. You're so kind.    C. You're lucky.

2. A. They're very cheap.    B. Never mind.   C. I hope you  like them.

3. A. No. He was singing a song.   B. Yes, he is.    C. No, he didn't.

4. A. I'm reading a book.  B. I read the book carefully.   C. Teahouse.

5. A. Yes, but you can't.   B. You can't have a look.   C. Of course you can.

6. A. I prefer singing.               B. Yes, I do.   C. No, I don't.