第三篇：

　　Dear Isabella,

　　How are you? I received your letter by special delivery yesterday afternoon. Many thanks for the enclosed nine drawings and beautiful photos and, above all , for the invitation itself. Your invitation reminds me of the promise we made last year. I can still remember the day you and your folks moved to Taipei. That day you and I made a promise to meet again one year later, and we walked the street most of the time in silence. Then we said good-bye to each other and parted at the street corner at last. That is really a haunting memory, isn't it? Now one year is gone. You have invited me to go on holiday for a week starting tomorrow and I remember our promise. But I hope you can forgive me for what I am going to tell you: I am dying to see you, but I can't I am sorry, please. I have to break my word because my elder sister is going abroad to seek advanced study. She will leave for Germany soon and my parents want me to give a hand to them and do some things for my sister prior to her departure. I hope you can understand this. I hope you will not blame me for real, will you? Perhaps everything will be all right next time. May you have an enjoyable holiday! With love, Hero

　　第四篇：

　　Dear Stephanie:

　　Would you forgive me for what I'm going to tell you? Because I failed to persuade my parents （ old fogies they are ） to let me spend the holiday with you and they insisted on my staying at home with them, I'm afraid I have to decline your invitation. Maybe there's another way to spend the holiday with you: you can invite my parents and me to visit your folks. Would you do that for me? Please let me know before you send that kind of invitation so that I can find some excuses to persuade my parents to accept it. Waiting for your answer, your friend, Helen.

　　第五篇：

　　Dear Friends:

　　You can hardly imagine how joyfully I was thrilled when you said in your jointly-signed letter that we could have an opportunity to spend our holiday together. It seemed apparently impossible for me to turn down your offer as I was really fed up with the kind of life I led; however, on the day following the arrival of your letter, an old family friend of ours wrote to tell our parents that he would come and be our house guest for a few days. He is not yet here, but the time of his proposed stay, unhappily and quite accidentally, coincides with that of our vacationing plan. As a result, I was advised not to leave our home at that time. I hate to write this, but as you can see, I've got no choice. Please write me about your reunion and let me share the joy you are going to have. Sincerely, Agnes.