阅读下列图文材料：

材料一

材料二   （雅典民主政体的根本缺陷）在于它把权力交给所有的公民，不需要国家管理者具有专长，不要求他们具有真知灼见。一个国家应当由既有专业知识又有道德的人去治理，统治者不是有王笏的人，不是偶然选中的人，不是攫取财富的人，不是使用强术、骗术的人，而是统治知识的的人。

——苏格拉底

材料三

材料四   各州选举人应具该州众议员之选举人所需之资格。……（众议院议员人数及直接税额应按合众国所辖各州人口之多寡，分配于各州，此项人口数目包括所有公民及五分之三非公民，并包括服役数年之人，但未被课税之印第安人不算。）

——《美利坚合众国宪法（1787年）》

请回答：

阅读短文，下列问题

（B）

    It is Sunday afternoon. Mary goes to do the shopping with her mother. Her mother wants to buy some food for supper. Mary wants to buy a new skirt and some school things.They come to a shop.

 “What does your shop sell?” Mary asks, “A lot of things.” The girl in the shop says. “You can buy food, drinks, clothes in our shop and school things, too.”

   Mary and her mother go in. there are many people in the shop. Mary finds a nice white skirt.

 “How much is the skirt?” Mary asks the girl in the shop.

 “It's eighty yuan.”

 “That's too dear. Can I find a cheap one?”

 “What about the green one? It looks nice. And it's only thirty yuan.”

 “Ok, thanks a lot.”

 “You are welcome.”

   After that, Mary buys some school things, too. Here mother buys a lot of food, like bread, cakes, meat and fish. They get home very late.