问题 选择题 看图，用适当的介词填空。1. The bag is ______________ the bed. 2. The desk is ______________ the bed. 3. The pencil is ______________ the pencil-box. 4. The dog is ______________ the chair. 5. The books are ______________ the desk. 答案 1. on 2. beside 3. in 4. under 5. on
