选出适当的句子补全对话。

Jack: 1.______

Lucy: I have been to the bookstore.Look,I bought a book.

Jack: What is its name?

Lucy: "Journey to Mars". 2.______

Jack: No, I haven't read it before.Do you mind lending it to me?

Lucy: 3.______

Jack: Thank you!

Lucy: 4.______

A.Of course not. Here you are.

B. Have you read this book before?

C. Not at all.

D. Where have you been?