求一篇英语作文,中学水平,题目是:please write a letter to your teacher in junior school 拜托了!

Dear teacher,
I want to tell you something(tell sb sth结构) and I hope you can give me an answer.
Do you know how I want you to use me more than before? Though I'm not the best student in our class. As an Assistant monitor. I think I can do a lot of things for you. But you always don't let me do (let sb do结构)something. You always let the monitor and a girl that she studies better than me do everything. Just as(后面接句子用as, 往往不用like) I'm air. Do you know how I am(形容词前构成句子得加be动词, 所以加上am) sad? I can do it well.and (加上and表递进, 意思更通顺一些)I'm able to do it well. The most important(拼写错误) is that(后接表语从句得用连接词, 这里从句中不缺成分, 所以填上that)you know I can do it better than them and something should be done by me. But I can't understand why you do not let me do anything (否定句中用anything)for our class. Maybe you will say you have to improve your result. But I don't think it will influence my result. Maybe I have let you(动词后用人称代词宾格) down. Because I speak in class sometimes.
I'm not playing a leading role in our class. I know.
So. I really need your answer to help and change me.
Thanks and best wishes
亲爱的老师,
我想告诉你（告诉某人某事结构）,我希望你能给我一个答复.
你知道我多么希望你用我比以前更?虽然我不是我们班最好的学生.作为一名助理监督.我想我能为你做很多事情.但你总是不让我做（让某人做结构）的东西.你总是让显示器和一个女孩,她学习比我做的一切.正如（后面接句子用的,往往不用像）我的空气.你知不知道我（形容词前构成句子得加是动词,所以加上分）伤心?我能做到well.and（加上和表递进,意思更通顺一些）我能做得很好.最重要的（拼写错误）是（后接表语从句得用连接词,这里从句中不缺成分,所以填上说）你知道我可以做得比他们更好的东西应该由我做.但我不明白你为什么不让我做我们班的任何东西（否定句中用任何东西）.也许你会说你要提高你的结果.但我不认为这会影响我的结果.也许我让你们（动词后用人称代词宾格）下来.因为我有时在课堂上发言.
我不是在玩我们班的主导作用.我知道.
如此.我真的需要你回答我的帮助和改变.
感谢和最良好的祝愿