一、主动通知对方

　　I am writing this letter to inform you I submitted my application and supporting…

　　This is to inform you…

　　I wish to inform youthat I have made arrangements for an official transcript and TOEFL scores to be sent…

　　Please be informed…

　　Please be advised…

　　二、初次答复(以主语开头)

　　Thank you for your letter for regarding the status of my application…

　　I have received your letter of August 15,2010 with regard to your kind approval fo my application for admission…

　　I am in receipt of your letter of August 15,2010 in regard to the Admissions Commitee's decision on my…

　　I wish to ackonwledge with thanks receipt of your letter…concerning the requirements for admission to your ** program…

　　I am please to receive your letter dated Aug. 15 as to…

　　relative to

　　三、初次答复(不以主语开头)

　　With regard to

　　With reference to

　　In reference to

　　Referring to your letter of August 15,2006 .....

　　answering to

　　In reply to

　　Replying to

　　Concerning

　　四、补充答复

　　In further reply to your letter of August 15,2010 …

　　With further reference to…

　　五、接信时表示喜悦

　　I noted with pleasure…

　　I was pleased to learn…

　　I was glad to know…

　　I was delighted to learn from your letter of August 15,2010…

　　I was gratified to learn…

　　It is gratifying to learn…

　　It is a pleasure to learn…