根据首字母提示，填写单词完成短文。 Mary has four cousins. (1) T are Betty, Peter, Bill and Ann. Mary is the(2) o of the five. Betty is 13 years old. She is 2 years (3) y than Mary and one year oder than Peter. Bill is nine, and Ann, the (4) y is seven. Betty and Peter are good runners, But Peter (5) r faster. Mary and Ann like to play basketball. Mary (6) p better than Ann.  Bill is the(7) b singer of the five. Mary and Betty(8) s in a middle school. The 5 children all(9) w _ Betty hard at school. But Betty works (10) h .