根据对话内容，选择恰当的句子将对话补充完整。（选项中有两项是多余的）
A: Hello, Linda!
B: Oh, hi, Jack!
A: Would you like to go to the library to borrow some books with me?
B: Borrow books? Sorry, I can’t. 【小题1】
A: What are you doing now?
B: 【小题2】 And I can’t borrow any books until I return this one.
A: 【小题3】
B: A Brief History of Time.
A: 【小题4】
B: It was written by Stephen Hawking.
A: 【小题5】
B: Great. He is one of my personal heroes. As I read his ideas about space, time, black holes, and the universe in which we live, I was amazed at how easily he explained the complicated (复杂的) subjects in the book.

A．What do you think of the writer?

B．I like it very much.

C．What’s the name of the book?

D．I am busy at the moment.

E．I am reading a book borrowed from the library.

F．Who wrote it?

G．OK, what is it about?