teve: Oh, it is difficult to solve the math problem for me. I can not find the answer. What should I do?
Lucy: I know Mary study harder than us about math. Why not ask her?
Steve: A good idea. I will ask her about this problem and how to learn math well.
(After asking Mary)
Lucy: What about that problem, Steve? Find the answer？
Steve: Sure. Mary is very kind and I think she study harder than I.
Lucy: What do you mean?
Steve: Mary told me that she read a lot of books about math. What’s more, she can think about the problems she can not solve them till she finds the answer.
Lucy: So her achievement is better than us.
Steve: Yes, that’s a reason.
Lucy: I think we will learn the method and more things from Mary.
Steve: I agree with you.