Use thư words give to make a conditional type 1 :
1.if/ burn rubbish/ , you/ produce harmful smoke.
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2. if/ reuse bottles/ , we/ save/ a lot of money.
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3, if/ use recycled paper / we / save trees.
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4 if / plant trees in the schoolyard,/ their school / be/ greener place.
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5. There is / rubbish bin / every class / classroom / be/ cleaner.
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6. You/ forger all the time, / you/ have to pay/ alot of money/ electricity.
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7. if/ we/ throw rubbish/ into/ river/water/be/polluted.
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8. if/ there/ bt/ many/ factories/ here / ,the air/ be polluted.
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9. if/ we/ grow / flowers and vagetables,/ our house/be/ greener and more beautiful.
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