A friend has asked you to babysit on Saturday and wants to know how much you charge per hour. You already have a commitment this weekend, but you are free the following weekend. Write a letter to your friend. In your letter: - explain why you cannot help this weekend - say that you could help the following weekend - explain what your fee is
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趁题目在眼前，限时写一篇
按考试时间写完，就知道自己在四项评分标准上各差在哪。
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