A —— salesgirl         B —— customer
A: Good afternoon, can I help you?
B: Yes, ____ 
A: We have different kinds of sports shoes. They’re all in style. What color would you like?
B: I prefer blue.
A: ____ ?
B: Size 40.
A: What do you think of this pair?
B: Great! ____  ?
A: Certainly. This way, please.
B: Oh, they fit me very well. ____ ?
A: 500 Yuan.
B: ____ . I can't afford.
A: Well, I'll give you a 20% discount.
B: OK. I'll take them.

某同学想用实验证明硫酸铜溶液显蓝色与SO₄^2﹣ 无关，进行下列实验无意义的是（　　）

—Happy New Year, Kitty!

—_________________

阅读下面选段，完成填空。

       他向她扑了过去，抡起拳头没命地打。她躲也不躲，说：“打吧！打吧！打吧！”我从炕上捡起枕头，从炉子上拿起皮靴，没命地向姥爷砸去。可他没注意我扔东西，正忙着踢摔倒在地上的她。水桶把姥爷绊倒了，他跳起来破口大骂，最后恶狠狠地向四周看了看，回他住的顶楼去了。她吃力地站起来，哼哼唧唧地坐在长凳子上，慢慢地整理凌乱的头发……