祝贺信
写作步骤：
1.简单问候，说明写信祝贺的原因
2.具体祝贺的过程
3.结尾
内容：请写一封祝贺信，你的好朋友Andy被英国剑桥所录取，写信表达你的祝贺。
Dear Andy，
    How time flies！I have learned with happy that you was given a place at the University of Cambridge.This is a special moment for you.Congratulations!
     This is a notable day in your life and your parents.I know you worked very hard on the past few years.I can imagine the hardship you overcome in this process.I believe this time you outdo yourself and more to a higher level in your study. It is a new beginning,and you will be gain success in university Days.Besides, it’s a good chance for you to with so many top students who will give you motivations to study hard.
     I wish you success in all activities you take part in and you will enjoy the life.
                                                                                                                                  Sincerely yours, 
                                                                                                                                       Xiao Ming 
道歉信
写作步骤：
1.因何事道歉
2.提出补救办法
3.结尾
内容：前几天，小李借了Ella一本书,然后因为你的粗心而弄丢了这本书。
Dear Ella,
    I am writing to make an apology to you for I lost your book that you lent me. I am terribly sorry for my fault,It wasn't my intention to lost it somewhere.
    To make up for my mistake,I would like to buy another one as a token of my apology.If everything else fails,I will sent you money on books by express as soon as possible. Would you tell me which way that you think is doable?
    Again,I deeply apologize for the problems my actions caused.I look forward to hearing from you.
                                                                                                                                        Yours sincerely,
                                                                                                                                             Wang Yu