根据短文内容, 回答下列问题
Look! This is Li Ming. He is from Haikou. He is thirteen years old. Now he is in Haikou No. 14 Middle School. He is in Class Five, Grade Eight. His telephone number is (020)7868-9688. Li Ming and Sally are good friends. They are in the same class, but not of the same age(年龄). She is twelve. She's from America. Now Sally and her mom are in the same school. Her mom is a good teacher.