【题目】选词填空。
A. air B. city C. wood D. important E. paper
Trees make our 【1】 beautiful. They are very 【2】. They keep the 【3】 clean and cool. We can get 【4】 from trees. We can use the wood to make 【5】, desks and chairs. So please plants more trees.
【答案】
【1】B
【2】D
【3】A
【4】C
【5】E
【解析】
略
