判断题
1.The ruler is under the pencil box.
2.The book is under the bag.
3.The chair is under the desk.
4.The sharpener (卷笔刀) is under the desk.
5.The ruler is in the pencil box.
6.The bag is on the desk.
7.Look at the elephant. It's so big.
8.The ball is on the box.