问题
填空题
同学们，仔细观看这些小动物在哪儿，用in、on或under填空。
1. 
Aha! It's the apple. 
It's the book.
2. 
It's the egg. 
It's the box (盒子).
3. 
Aha! It's the tree. 
Look! It's the tree.
答案
1. in, under 2. on, in 3. under, in