四、Read and choose. 小树需要你的帮助。请你读一读,选择合适的单词补全下列内容,将序号写在横线上。
A. grow B. need C. water D. air E. small

I am a 1. ______ tree.
I 2. ______ your help.
I like the sun and the fresh 3. ______.
And you can 4. ______ me.
It helps me 5. ______.

1. E 2. B 3. D 4. C 5. A