what is you experience for casting process?请哪位英语高手帮写几句,本人英语实在是头大!

看下面在这篇作文哪里有错误,怎么改?Dear Tom,How are you doing?I,LiHua studying with you ever,am truly grateful to your helping me learn and deal with the problems which happened in my studying.What is forgettable for me is the experien what is you focus? What is up you what is you! what is you What letter is you? what is you name What is you number what is you name?. without you,what is What is you mother? what is you name what is you mother? what is you ------so? what is you major what is you doing? 请问what you say is what you what you C is what you