A、At supper-time. B、Before Jane went to bed. C、Around eleven. D、After midnight. C

M: Hi, Jane... Say, are you OK? You’re looking a bit tired.
W: Oh, I am. It’s my neighbors.
M: Oh, so they’re acting up again. Huh?
W: Unfortunately, yes, they are.
M: Loud music?
W: Not exactly. You’ve been to my apartment, right?
M: Yeah. I’ve been there once. It’s a nice place.
W: Well, thank you. So you remember I live on the top floor. Well, last night, around eleven, my neighbors decided to go up on the roof of my apartment building!
M: The roof? Really?
W: Yeah. They had this guy in from out of town and they wanted to show him the view! Can you believe it? I’m soundly asleep, and all of a sudden I hear "stomp, stomp, stomp!" They’re walking around on the roof. It sounded like my ceiling was going to fall in.
M: So what did you do?
W: Well, after about ten minutes, I got dressed and went up there to tell them to be quiet. I was so mad. Then of course after that, I couldn’t go back to sleep.
M: Oh, don’t you hate when that happens? You can’t fall asleep, and then before you know it, it’s morning and the alarm clock is going off.
11. According to the conversation, who made the woman irritated?
12. What did these people do that irritated the woman?
13. What time did the woman’s neighbors go onto the roof?
14. Why did the woman’s neighbors go up on the roof?