根据所给提示，用英语写一篇80词左右的短文，可适当发挥，短文已给出的部分不计入总词数。注意：文中不得出现真实姓名和校名。

Twenty years ago Sandy and Kitty were in the same class.___________________________________
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Later they went to different colleges. They had not seen each other then. Last week they met on the street!_______________________________________________________________________________________________________________________________________________________________