补全短文。根据短文内容，从短文后的A-F选项中选出适当的选项补全对话。（共5小题，每小题1分；计5分）
This is a picture of Tracy’s room. It’s a tidy room. A bed, a bookcase and a clock are near the window.        What’s under the chair?            Its name is Kitty. Tracy likes it very much. Some books and a dictionary are on the desk.          She is a good student. Look!          No, they aren’t hers.           He’s a student, too.

They’re her brother Tom’s. Tracy always reads books at the desk. Are those her model planes(模型飞机)? A chair is next to the bed. They are her brother Tom. It’s a cat.