根据短文内容选择合适的句子填空。

      A funny thing happened to my sister Tina last month. She lives in Japan and teaches English. In Japan, people don’t usually wear their outdoor shoes in the house or in school, and a lot of buildings have places for shoes. So her school has a special place for shoes. ____    
     Tina teaches English in the evening. One Friday, she went to school, and she put her shoes in the shoe box as usual. Then she had an interesting spoken English class with her students.  ____  But to her surprise, her shoes weren’t in the box. There was only one pair of those there, and they weren’t her shoes! She had to get home in a hurry. ____    
     On Monday, at her next English class, her shoes were in a shopping bag on her desk! There was a note that said, “I’m so sorry. I took your shoes by mistake!” ____  Somebody felt a lot of shame!

在△ABC中，AB=AC，∠B=50°，∠A的度数为（  ）.

根据中文和英文提示，用英文写一封意思连贯、符合逻辑、不少于50词的邮件。邮件的开头和结尾已给出，不计入总词数。所给提示词语仅供选用。请不要写出你的校名和姓名。

假如你叫李华，你们学校为配合北京申办冬奥会，倡导人人都做文明中学生。请你根据以下提示，给你的英国笔友Peter写一封邮件，告诉他你认为做个文明中学生什么是重要的，你通常是怎么做的，以及你的感受。 

提示词语：think, smile, respect, say hello to, wait in line, on time, happy 

Dear Peter, 

How is it going? At my school we’re talking about what we should do to be a good student.

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Anything new at your school? 

Yours,

Li Hua

“秉持公心，指谛时弊，机锋所向，尤在士林。”鲁迅先生评论的这部小说是

如果a× $\frac{5}{8}$  ＝b× $\frac{3}{2}$  ＝c×1，那么a、b、c这三个数中，最大的一个数是（）