I do appreciate your timely help.我的确很感激您的及时帮助。
As soon as I opened your package, I felt that I must sit right down and tell you.一打开您寄来的包裹，就觉得应该立即写信致谢。
At the outset, I want to thank you for your kindness to me and for your compliments.首先，我要感谢您对我的友爱和问候。
Believe me, I am truly grateful for我确实真诚地感谢你.
Expected gifts are a pleasure to receive, but unexpected remembrances are an even greater joy.园意中之礼物果然可喜，而意外中之礼物更使人喜出望外。
I do appreciate your timely help.我的确很感激您的及时帮助。
I really can’t thank you enough for the invitation.我对您的邀请真是感激不尽。
I really can’t thank you enough.我对您真是感激不尽。
I really don’t know how a can thank you enough.我真不知怎样感谢你才好。晚安短信.
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I should like to express my appreciation.我谨表示我的谢意。
I should like to express my gratitude for your kidness.我向您对我的好意表示感谢。
I should like to say how grateful i am.我谨表示我深切的谢意。
It was good (fine)(charming)(thoughtful)of you.承蒙好意（美意）（盛情）（关心）
It was nice(characteristically thoughtful) (more than kind) of you.承蒙好意（特别关心）（十二分好意）
Thank you for doing so much to make my trip to New York interesting (pleasant)(resultful).为了使我去纽约的旅游有趣（愉快）（大有收获），您做了许多事，特此致谢.
Thank you for one of the most enjoyable visits we have had in many months.在您处的参观访问，是我们几个月中最愉快的一次。谨向您表示感谢。
问候短信.