A、Yesterday. B、A couple of days ago. C、A month ago. D、One week ago. D

W: Hey! Are you going to play some tennis this afternoon?
M: Well, to tell you the truth, I’m not feeling so hot today.
W: Come on. How long has it been since we played?
M: A couple of days.
W: A couple of days? Come on. It’s been more than a couple of days.
M: Yeah. I guess you’re right. It’s been almost a week.
W: It’s been exactly a week. And we used to play at least three times a week.
M: I know. Playing right after class was something to look forward to.
W: Yeah. And it was right before dinner. So we build up our appetite.
M: I’ve just been very busy, I guess. And my stomach is bothering me today.
W: But you look OK to me.
M: Well, I was up late with Steve in the library working on a project. We have to turn it in by tomorrow for that history class. We’ve been working on it all weekend. And I was drinking a lot of coffee. I guess I just drank too much.
W: Listen. I took that class last semester. And I could meet you in the library later tonight and help you if you want. And then you have time to play tennis this afternoon.
M: Yeah. I guess my stomach doesn’t ache that bad. And I could certainly use your help. But it’s also...
W: Is there something else bothering you?
M: Well, to be honest, I’m getting tired of losing.
13. What are the speakers mainly discussing?
14. When was the last time the speakers played tennis together?
15. What does the woman offer to do for the man?