【正确答案】Dear Anna,
I'm now writing to you at home. My journey to England is very wonderful. I am very grateful for your hospitality. I really had a good time in Britain, especially those days when you showed me around and told me some customs of your country. I do hope that one day you can come to China and I'll give you a warm welcome. I'm looking forward to seeing you soon!

【答案解析】[写作点金] 书信是日常生活中常用的文体，是用以交涉事宜、传达信息、交流思想、联络感情、增进了解的重要工具。书信一般可分为商务信件或公函(Business Letter or Official Correspondence)和私人信件(Private Letter)两大类。英语书信通常包括下面几个组成部分：信端、信内地址、称呼、正文、结束语、签名等。PETS考试中的书信主要考查正文的写作，要求按照汉语提示准确而全面地进行表达。
[高频词句]
一、邀请信
1. I'd like... to come to dinner. 非常希望…来共进晚餐。
2. The favor of a reply is requested. 敬赐复函。
3. May I have the honour of your company at dinner? 敬备菲酌，恭请光临。
4. We sincerely hope you can attend. 我们期待您的光临。
二、感谢信
1. Thank you very much for... 十分感谢…
2. Many thanks for your... 非常感谢您…
3. Please accept my sincere appreciation for... 请接受我对…真挚的感谢。
4. Thank you again for your wonderful hospitality and I am looking forward to seeing you soon再次感谢您的盛情款待，并期待不久能再见到您。
5. I find an ordinary “thank-you” entirely inadequate to tell you how much...我觉得一般的感谢的字眼完全不足以表达我对您多么地…常用的结束语有：1)Await your good news 2)I hope to hear from you very soon. 3)We look forward to your reply at your earliest convenience. 4)I look forward to our next meeting there in Los Angeles. 5)Your early reply will be highly appreciated.