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**EXERCISES** Use words from each column to circle properly, as about how we should help the environment. | Column 1 | Column 2 | Column 3 | |----------------------|----------------------|----------------------| | try to throw away | aluminum cans | recycle | | water | water | trees | | save | plant | | - Try to recycle aluminum cans. - Don't waste water. - Try to save trees. - Don't throw away aluminum cans. - Try to plant trees. - Don't cut down trees. --- **Complete these word-building tables. If necessary, use a dictionary to help you.** | Words | Synonyms | Words with Similar Meaning | |-------------------|----------------------|----------------------------| | waste | destroy | harmful | | protect | damage | endangered | | destroy | pollution | dangerous | | pollution | harm | safe | --- **TO BE STRONG** My son, I can. I can...