A、He was checking his writing. B、He was counting the coins. C、He was reading a book. D、He was talking to another man. B细节题。根据男士的

W: Why? Peter? You look unhappy.
M: I lost my temper at an old man just now, and I feel badly.
W: Oh, you shouldn’ t have done that. But why did you get angry?
M: Lack of patience. He was counting out the coins, one by one, with his fumbling fingers. I was filled with exasperation at the checkout point. Finally, I said to him, "Can’t you count a bit faster? I was very busy". He flushed. Suddenly it occurred to me I was very cruel and impolite. Because he is rather old and he can’ t help it and one day I will become old myself.
W: Did you apology to him?
M: Certainly, I did. But I still worry my lacking of patience. And I am dying to find a way to become more patient. Because when you are impatient you may become rude and hurt somebody unconsciously.
W: Yes, I also have such a shortcoming. Sometimes I shout sharply to someone slow to understand. We must find more means to calm ourselves in such situations, especially when we are under great pressure. I have found some books about this problem. There are some useful tips.
M: Please tell me some tips.
Questions 12 to 15 are based on the conversation you have just heard.
12. Why did Peter look unhappy?
13. What is the cause of his fury?
14. What was the old man doing?
15. Where did the woman find advice about patience?