We must learn ways to stop ________ so much.

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Papers are made ________ wood.

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Those cars are made ________ metal.

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Mum, I'm thirsty, would you please pass ________ a glass of juice?

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The boy _________ lost his backpack has to borrow books from his teachers.

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They put all that they recycle in their ________ bin.

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All ________ is needed is a supply of oil.

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There are three recycling bins in Zhang Wei's apartment. They recycle ________, ________ and ________.

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Now most people know _________ is very important.

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It's dangerous to drive on the street after drinking the wine. You are ________ risk.

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