看图填入适当的介词。Lookatthepicture.Theballisthed
题型：填空题
问题：
| 看图填入适当的介词。 |
 | Look at the picture. The ball is the desk. The ruler is the desk. The backpack is the desk. The pingpong ball is the bag. The pen is the desk. |
| 看图填入适当的介词。 |
| Look at the picture. The ball is the desk. The ruler is the desk. The backpack is the desk. The pingpong ball is the bag. The pen is the desk. |