看图画,用适当的介词完成句子。 1. Look! We can see a desk, a bed and a chair ______ the bedroom. 2. There is a map ______ the wall. 3. A soccer ball is the chair ______ the floor. 4. Some books and a pencil case are ______ the desk. 5. —Where are the clothes (衣服)? —They are ______ the bed.