Letter of Thanks感谢信The format of letterUseful sentences & phrasesSamples & exercises Unit 3.6 Writing Unit 3.6 Writing The format of letter 书信的格式 Unit 3.6 Writing Unit 3.6 Writing 称呼语 （salutation）:正文部分（body of the letter ）署名（signature ）称呼语（salutation）情况 称呼 落款未知收信人姓名Dear Sir(s)Dear MadamDear Sir or MadamYours Faithfully、Faithfully Yours知道收信人的姓名，但关系不亲密Dear Mr. BushDear Ms. BushDear Dr. BushDear Prof. BushYours Sincerely、Sincerely Yours知道收信人姓名且关系亲密Dear MaryDear SmithBest regards、Best wishes、Love、Wi
