短文改错

As we all know，class is place where students ought to work harder to realize their dreams. However，there are some students not using class properly，which makes things to go from bad to worse. For example，some students play mobile phones and sleep in class，wasting quantities of precious time. What's worse，some students enjoy chat with others. Not only does it affect our own study，but also it will do harm for others.

As far as I am concern，the main reason is that they don't realize the importance of study. To solve this problem，they have to understand making full use of class was the best way to improve the efficiency of study. After all，time and tide waits for no man.

你班打算在下周日下午举行讲英语故事的比赛。假如你是英语课代表，请你在班上口头通知此事。该口头通知需包括活动益处、具体时间、地点、评委及要求等内容。
注意：1. 词数100左右；
2. 文中不能出现真实姓名和学校名称。
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假如你是李华，你们班将于星期五下午举行关于健康的英语主题班会，请你以英语课代表的身份写一封电子邮件邀请外籍教师Martin前来参加。
要点：1．班会的时间和地点；
2．告诉Martin班上同学们的思想状况；
3．希望Martin谈论健康的重要性及保持健康的方法。
注意：1．不得透露真实姓名或学校名称；
2．词数100左右。
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假定你是李华，你校学生会在全校招募志愿者，为即将在你校举行的国际教育论坛服务。请用英文写一封邮件申请参加。主要内容包括：
1. 写信目的；
2. 自我介绍；
3. 希望获准。
注意：1. 词数100左右；
2. 开头和结尾已给出，不计入总词数；
3. 可以适当增加细节，以使行文连贯。
Dear Sir or Madam,
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With all my best regards.

Yours sincerely,

Li Hua

短文改错
Since the time I was seven, I have had a dream of becoming member of the Student Union. I always admired my school leader for taking responsibility for both of us. So I dreamed of being a leader like them. Years fly by and soon I was able to take part in the elections, hoped I would win.
But the reality proved that I didn't have a chance. I wasn't excellent enough. Girls in the school hard knew me. I just did not have which it took to win a school election. I was disappointing. As I cried in my room at that evening, I suddenly took a deep breathe and decided I wouldn't stop trying. I decided that I would enter for elections again in my final year at school-and I would win the election.