英语作文 如果你叫李华,在学习英语过程中.

Dear Mr. Mark, my name is Li Hua, I'm in your English class. I'm writing to you today because I have some problems in learning English. I hope I can get some good advices from you. Firstly there are too many vocabularies in the textbook that make me hard to remember all of them. What shall I do on this? Is there a better way to remember the words? Will reading help? Secondly is about the grammar and the paragraph understanding. I know most of the words in the papagraph, however when they are connected, I don't know its meaning.And the last thing I feel hard is writing. I don't know how to improve my writing skills. Can you please teach me some?
I'm hoping to hearing from you soon on this.
Thank you for your time in advance.
Sincerely,
Huahua前面的是什么意思sincerely么？那是英文写信的结束语，　就像中文的此致，　敬礼一样方框里面的都有吗？方框里面提示的都有吗？差不多都有，