It's Bobby's birthday today. He is twelve years old now. Mrs. White is his mother. There is a party for Bobby. Six girls and ten boys come to his party. They are his friends. Grandparents come to the party, too. Bobby's father, Mr. White buys (买) some fruits, cola, juice, biscuits and a birthday cake for the party. All(全部)the people sing“Happy birthday'' together for Bobby. They are very happy.