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A rubbish bin has this message. An empty pizza box on the ground complains like this. Here a bottle makes a musical contribution.
A clump of grass has this message. Here is a tree who wakes up to make an important point.
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Decide on a phrase and write it down. (For example: Don't use plastic bags. Use me!)
Decide on gestures. (Explain relevant grammatical points if necessary and if time allows.)
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