2017年上半年英语六级口语考试常用句型：商务信件
收信
We have received your letter of April 14,1998.
We have received your letter dated April 14,1998.
We thank you for your inquiry.咨询函
We have received your letter and thank you for your inquiry.
We are pleased to learn from your letter...
From your letter we have learned that...
We are grateful for your inquiry of May 23,1998.
This is to acknowledge your letter of June 6,1998.
回信
We are pleased to respond to your inquiry of August 18,1998.
We are pleased to answer your letter of August 18,1998.
We are writing in response to your letter of October 21,1998.
We are writing with reference to your letter of October 21,1998.
This refers to your letter of October 29,1998.
This is in response to your letter of November 4,1998.
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