【参考范文】 One possible version:
(A)
Dear Tom,
Thanks a lot for your invitation. I’m sorry I can’t come to your birthday party on Friday. I’m very busy. I have to study for the test on Monday. On Tuesday I’m going to New York, and I’m staying there for two days. On Thursday I have to have the piano lesson. And I will visit my grandpa on Friday. So I don’t have time. I have to say sorry to you. Wish you a good time! Mike
(B)
One possible version: Dear Jack,
Thank you for asking me to visit your farm. I’d love to, but I’m afraid I can’t. Today is Friday. I’m going to see my grandparents this evening. Tomorrow morning I have to help my father work in the garden, and in the afternoon I am going to do some shopping with my mother. On Sunday I have to study for the Chinese test. In the evening I’m going to the concert with my friends. Write soon. Yours, John
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