1. We are very sorry to hear (know) that

　　2. we are grieved to hear of (about)

　　3. We are indeed sorry to hear that

　　4’ We very much regret to hear that

　　5. We regret to hear of (that)

　　6. It is with great regret that we just learn that

　　7. Much to our regret we have heard that

　　8. We regret to receive your information re

　　9. We regret that we have been informed that (of)

　　10. To our deep regret we were informed that (of)

　商务英语|BEC商务英语之常用套话

　我们对于您某月某日来函的询价，深表谢意等。

　　1. We thank you very much for your inquiry of the l0th of May

　　2. I thank you for your inquiry of the 10th May

　　3. We are very much obliged by your enquiry dated the 10th May

　　4. We are indebted to your inquiry under date (of) the 10th May for

　　5. I thank you for your inquiry of July 10

　　6. Thanks for your kind enquiry of May 5