In the laundry room: Mrs. Anderson: Mike, can you come over here, please? Mike: Sure, Mom. What is it? Mrs. Anderson: (1) ________________ shirt is this? Mike: I don't know. It must be (2) ________________ . Mrs. Anderson: I don't think it's his shirt. He doesn't like green. Mike: Oh. Then, it must be (3) ________________. Mrs. Anderson: I thought it was yours.