A、An important person is coming into his office. B、He has to answer another phone call. C、He needs to leave the office soon. D、H

W: Hello, this is Mary speaking.
M: Hi, Mary. This is Owen.
W: Ah, my dear editor. What’s up?
M: I am calling to tell you that the book you sent me has been approved to be published.
W: Really? That’s good news. I can’t believe my ears. Since the day I put the manuscript into the postbox, I have been counting the days. Am I daydreaming? Tell me, do you really think the book is good enough to be published?
M: I have no doubt about it. And I am sure it’s going to be a bestseller.
W: Oh, I don’t know what to say now. Thank you so much. When is it going to be published?
M: Don’t be in such a hurry. Before publishing, we need to meet and there are some places that I feel can still be improved.
W: No problem. I am looking forward to learning from you and getting some professional opinions.
M: Oh, you are so polite and humble. I think we can have a discussion and learn from each other.
W: How about tomorrow morning? I can go to your office.
M: Oh, I’m sorry. There is another call coming in. I have to hang up soon. Can you come here at about 9:30?
W: All right. No problem.
M: My secretary is going to call you to confirm the appointment. I hope to see you tomorrow.
W: See you.
12.  What is the relationship between the two speakers?      
13.  How does Mary feel when she gets the news from the man?      
14.  What’s the purpose of the man’s calling?     
15.  Why does the man have to hang up?