我是个勤快的好孩子 英语作文

A farmer has five sons.They are Ted,Bob,Tom,John and Bill.John has no elder brother.He was four years older when his first younger brother was born.The number of Tom's elder brothers is equal to his younger brothers.Bill will be twenty-one years old next year,and he is five years older than Bob.Bob is two years younger than Tom_Ted was sad because he has no younger brother.There are twelve years between him and John.