A、She is serving her guests. B、She is singing songs. C、She is working hard. D、Shc is looking at the city. D

M: What are you doing out here alone?
W: Just looking at the lights. I like to look at the city at night.
M: It’s a wonderful party. Everyone is standing around piano and singing, Do you want to join us?
W: I’d rather stay out here for a few minutes. Looks down where I’m pointing.
M: I don’t see anything special.
W: That’s where I used to live when I was a child.
M: What kind of neighbourhood was it?
W: A very poor one. Everyone was supposed to work hard and end up with a house in the suburbs.
M: But you’ve ended up with an apartment in the sky.
W: Yes, I don’t want to lose it. I worked hard for this apartment.
M: I think that means that all of us had better go home soon, so that you can get a little sleep.
W: I do have to be at the office in the morning.
M: Tell me how do you do it to both work and play so hard?
W: I don’t know. I just like to do both.