This is a photo of Mr. Green's family. The man with glasses(眼镜) is Mr. Green, the father. The woman is the mother. They have a son and a daughter. The son is behind Mr. Green. His name is Tom. He's 13. Kate is Tom's sister. She is 11. Tom and Kate are in the same school, but they are in different (不同的) grades. Tom is in Grade Three and Kate's in Grade One. They are good students.