13：A: Wanna come with me to the opera tonight? I've got extra tickets and I think it will take your mind off that math problem that u were swearing over for the last two hours

B: that'll be great but the opera is in what? Italian, right? I think I have a better chance of understanding a math problem

Q: what does the man imply?

(A) He can't afford to buy the ticket.

(B) He needs a break from the math problem.

(C) He doesn't want to go to the opera.

(D) He'll meet the woman when he has finished the math problem.

这个题目的疑惑在于maths problem.我在前面的听力中，不记得那一年的了，好像说，maths problem是关于钱的问题。那末在这个题里面 怎么理解呢？还是仅仅“数学问题”。所以我在A和C 之间不知道如何选择？

应该就是数学问题

I think it will take your mind off that math problem (是不是A也知道了是哪个math problem，如果是钱的问题就不用that了吧？)

I think I have a better chance of understanding a math problem

(如果是钱的问题也不用understand了，而且用了a,应该是“一个数学问题”)

BTW，math problem 真有关于钱的问题这个解释？不知道哎...