读图，判断此处为我国哪个地区？（   ）

给定下面一列分式：$\frac{x^3}{y}$,$-\frac{x^5}{y^2}$,$\frac{x^7}{y^3}$,$-\frac{x^9}{y^4}$，…，（其中x≠0）

（1）把任意一个分式除以前面一个分式，你发现了什么规律？

（2）根据你发现的规律，试写出给定的那列分式中的第7个分式．

A. Why do you like spring best?  

B. What will you do for her birthday?    

C. Which season do  do you like best? 

  A: Hello. Can l ask you some questions，please?

  B: Sure.

  A: ____

  B: I like spring best.

  A:____

  B: Because my mother's birthday is in spring.

  A: ____

  B: I'll make a card for her.