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If we use _______ paper, we will save a lot of trees.

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Please _______ the trash and put it in the trash can.

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“Don’t throw rubbish into the river because you will make it _______.”

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If more people cycle, there will be less air _______.

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There are four students at each table. My friend Justine sits _______ me.

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Can you show me _______ way to _______ station?

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You should put the food in a reusable box _______ plastic bags.