听力原文：M: Well, Sally. Why do you look unhappy？W: Oh,Hill, 1 have just had a quarrel wit

听力原文：M: Well, Sally. Why do you look unhappy？

W: Oh,Hill, 1 have just had a quarrel with Mr. Smith.

M: What on earth was it about？

W: Well, I have made three bad mistakes so far this week, so he got very angry with me.

M: But I don' t understand. You are usually very careful and never make mistakes.

W: I' m just so tired. I don' t know what I' m doing.

M: Why？ Have you been going to bed late these days？

W: No,I'm usually in bed at about eleven. But I' ve been woken up at about hair post four every morning. And than I cannot go beck to sleep again.

M: Why？

W: It's my new neighbor, the milkman next door. He gets up at half past four and he always turns the radio on loudly. And it' s difficult to ask him to mm it down. 1 don' t know him yet.

M: If you don' t want to see him, write Mm a letter. 1'11 help you write the letter.

W: OK. Let's try.

Why was Sally unhappy？

A．She could not sleep at night.

B．She could not talk to the milkman.

C．She had quarrelled with Mr. Smith.