问题描述：
() I'm going to buy a present for my grandma.
() On September 19,I can buy some cookies and flowers for her.
() Hello,Tim!Where are you going?
() Oh,I think it's a good idea.
() When is her birthday?
() Yes,I think so.Goodbye!
() On September 19,I can buy some cookies and flowers for her.
() Hello,Tim!Where are you going?
() Oh,I think it's a good idea.
() When is her birthday?
() Yes,I think so.Goodbye!
问题解答：
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