Dear Sir,

Dear Sir,

We have received your letter （） receipt of the items we mailed to you and noticing us to cancel shipment of your order for those items which are back ordered.

We will be （） you a refund as soon as we have completed the necessary paperwork for your account. 　　We would like to take this opportunity to thank you for shopping. Our new （） should be arriving at your home shortly, and I believe you will be pleased by some of the beautiful choices our buyers have made this （） .

Thank you for your patience and understanding and for providing us with the （） to be of service to you.

正确答案：acknowledging；

issuing；

catalog；

season；

opportunity

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