wrapping paper, a recycling bin, a tin, a battery, , a tin, an envelope, a soft drink can , a recycling bin, , a plastic bottle, a newspaper, a tin, an envelope, , a plastic bottle, wrapping paper, a recycling bin, a tin, , a plastic container, a tin, an envelope, a soft drink can , , unplug, turn off, reduce, recycle, , recycle, turn off, reduce, throw away , , reduce, turn off, recycle, throw away, , reduce, reuse, recycle, turn off, , turn off, reuduce, reuse, recycle.

Unit 4

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