题目内容：

补全对话

A: Hello, Bob. I called you yesterday afternoon, hut there was no reply.

B: Sorry, I didn’t take my phone with me.

A:   1.              ?

B: I was in a bookstore.

A: What were you doing?

B: I was choosing some books.

A:   2.              ?

B: Yes, I did. I bought some boos bout folk stories.

A: Folk stories? I like them very much. Can I borrow some from you?

B: Yes. You can borrow some from me. But why not buy some? I can go with you to the bookstore.

A: Good idea. 3.                .