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    Today is August 3rd. Tomorrow (明天) is Peter's grandfather's birthday. It is his 73rd birthday. Peter's two sisters, Sally and Tina, and Peter buy some things for their grandfather this afternoon. Sally buys a nice birthday card. And she writes(写) “Happy birthday” on it. Tina buys a blue shirt from a clothes store. It is $29. Peter buys some fruits and a set of books. The name of the books is Harry Potter (哈里波特)