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I can reuse some daily things.
（story time里提到了拯救地球的哪些方面？）
任选一个话题说一两句话吧！
We should use paper bags and glass bottles.
We should not save trees.
We should drive so much.
We should use too many plastic bags and bottles.
We should not cut down too many trees.
We should save trees.
We should not drive so much.
We should not use too many plastic bags or bottles.
We should use paper bags and glass bottles.
We should not cut down too many trees.
We should save trees.
We should not drive so much.
We should not use too many plastic bags or bottles.
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Tip:should 是情态动词，后接动词原形
在公园里看到“爱护树木，人人有责”时，......
We should protect trees.
...
公园里看到小朋友的爬树摘苹果时，说：“......”。
We should not climb trees and pick apples./ ...
公园里看到有人在墙上乱写时，说：“......”。
We should not write on the wall./ ...
公园里看到有水龙头未关时，......