There are four people in Jim 's family. They are Kate, Jim, their father and mother. Jim is Kate's brother. He is fourteen. Kate is Jim's sister. She is twelve. They are in the same middle school. Jim is in Class One, Grade Three. Kate is in Class Two, Grade One. They are good students. Their father Mr. Green is a teacher. He is thirty-nine. He teaches English in a school near his home. Their mother is a teacher, too. But she teaches Chinese in a different school. Now they are all at home. Now Jim is   _  .
at school at home on the bed in the classroom