Dear Mr Smith
I am so sorry about that I didn't visit you yesterday. I am expectting you can forgive me . Yesterday, my friend LiHong got a bad cold , and nobody can take care of her .So I have to look after her and not have time to meet you .But i belive you can make sense of me . Because I am losed a important appointment ，I feel very sad. Can we have another meet ? I want to study from you very much.
Looking forward to hearing from you.
Yous,
Li Hua
此致
敬礼
x年x月
dear sarah,
i am terribly sorry to tell you that i am unable to attend your birthday part next thursday evening. that is owing to the fact that my younger brother suddenly fell ill and was taken to a hospital this morning. i have to go there immediately and take care of him. as told by the doctor in charge, it will take around five days for him to recover and i have asked my boss for a leave.
i really regret that i cannot go to celebrate your birthday personally and would miss the perfect chance of enjoying myself with all our old friends. i have chosen a small gift for you and will send it to you tomorrow to show my best wishes. besides, please give my regards to our friends when you meet them at the party. cordially,
li ming
此致
敬礼
x年x月
ear Zhang, I am really sorry to tell you that I was unable to attend your birthday party yesterday evening. That is owing to the fact that my old friends visited my house without telling me the exact time. I had to entertain those friends with my passion in the entire evening,and I will continue to entertain them in the following two days.
I really regret that I haven't go to celebrate your birthday personally and had missed a wonderful chance to enjoy myself with our kind colleages. I have prepared a pretty gift to you yesterday and will send to you this afternoon to show my best birthday wishes. Besides, I trust that you will understand me. Best wishes
此致
敬礼
x年x月