A、Studying in the library. B、Having a good rest. C、Preparing a paper. D、Playing volleyball. C

M: Hey, Karen. Looks like you got some sun this weekend.
W: Yeah, I guess so.(1)I spent the weekend at the beach.
M: Oh, yeah? That’s great! Where did you stay?
W: Some friends of my parents live out there. And they invited me for as long as I wanted to stay.
M: So, what are you doing back here already?
W: Oh,(2)I have a paper that needs to work on. And I just couldn’t do any serious studying at the beach.
M: I don’t blame it. So, what did you do out there? I mean, besides lying out in the sun, obviously.
W: I jogged up and down the beach and I played some volleyball. You know, I never realize how hard it is to run on sand. I couldn’t even get through a whole game before I had to sit down. It’s much easier to run on the wet sand near the water.
M: Not to mention cooler. Did you go swimming?
W: I wanted to, but they said(3)the water isn’t warm enough for that until a couple of months from now. So I just wetted in up to my knees.
M: It all sounds so relaxing. I wish I could get away to the beach like that.
W: It looks like you could use it. Don’t tell me you spent the whole weekend in the library again.