请英语高手帮我修改一下这篇文章的语法错误,十万火急!

Dear teachers,
I am really honored writing to apply for this precious opportunity.
To begin with, I’d like to talk about the reasons why I choose this school. Established in1911, HKU is the oldest tertiary institution in Hong Kong. A variety of civilizations converge in here, which will enrich my knowledge and broaden my horizons.besides,the supreme facilities, outstanding professors and homelike campus ,as I've firmly believed, will benefit my study a lot. In addition, to tell you the truth, I am always eager to acquire an opportunity to study abroad so that I can interact with different students and broaden my global vision. The HKU Worldwide Exchange programmed will just provide the chance for me.
Secondly, BJ, LLB and BFIN are my ideal curriculum. I’m keen on journalism and hope to take up something relate to media. As far as I'm concerned, through the developing media, I’m able to convey my inner cognition to the society and spread the newest information everywhere around the world. Apart from that, Laws is another good curriculum for its bright outlook for job-hunting as well as Finance.
Last but not least, let me show you about my hope to the future. Dressed in neat uniforms, wander about in the beautiful school, communicate with people from different nations without any apprehension, quire the most beneficial knowledge and find my appropriate position in any corner of any country in the world------That's all that I dream of!
Yours sincerely,
Leona Tang