A、A week. B、Two weeks. C、Three weeks. D、Four weeks. A对话中，男士说离考试还有四个星期，而他度假回来还有三个星期的复习时间，因此可知男士一家将在加利福利亚待一个星期。所以本题答案为A 。

W: I have heard that you are going to California next week. What for?
M: One of my cousins is getting married there; my family is invited.
W: Wow, that’s big news. (22)What are you going to get for your cousin?
M: I’ve no idea, and that’s what is troubling me these days. You know, Jasmine is hard to please.
W: No wonder you look worried. So, what about your study? You should know that the final exams are coming. Don’t you worry about that?
M: Actually, I don’t. (23) There are still four weeks to go, and I will have three weeks to review my lessons after I come back.
W: You are leaving for a whole week? That’s a quite long time, especially in this period. I always get nervous while having exams, and I can’t sleep well the nights before exams. I think I should go to the doctor’s.
M: Well, we are quite different in that. I think it is just because you think of the exams too much and pay too much attention to the results. You should relax and take a little time off.
W: I wish I could. (24) You know, my parents have high expectations of me and they have done so much for me...
M: Oh, that all depends on how you think of it. Parents’ love shouldn’t be your burden. You tried your best, and that’s what counts. Your parents will surely understand you. Take it easy. (25) Talk to your parents; it may help.
W: Thank you for your advice. I’ll give it a try.