求写一封英文书信.假如你是某中学新老师、请给你的朋友张华写一封信.告诉他上课的情况（印象最深的事、怎么解决的）.不少于1

Dear Zhanghua: I'm excite to write to you today.Because I start my new life as a middle school techer today. When the ring rung,I went to the step,found myself higher than everyone in the class.I was smiled carefuly .Say:"Good morning,everyone!"The students standed up sound ...loudly,I found that they are so happy .So I did't give lessons to them at the beginging. I just want to recognize them at first.When I asked a boy to Introduced himself,he standed Helpless.Say nothing.The moment I thought someing as our school time .When techer ask some questions.Many students like say:"Sorry,I don't know."I smild kindly to him :"Never mind,you can in Chinese...""If you don't want to intrduse yourself,sit down please. " I was afraid to let him embarrassed.What should I do ? Can you tell me ? you's xietao