五年级的英语回信模板如下，请参考：
称呼：Dear Mr.Surname:
问候：Hello!
正文：I have received your letter. My opinion is as the follows.
结语：Yours sincerely,
回信人名字：your name.
Dear Mr. / Ms.,
This is to introduce Mr. Frank Jones, our new marketing specialist who will be in London from April 5 to mid April on business.
We shall appreciate any help you can give Mr. Jones and will always be happy to reciprocate.
Yours ， faithfully
