What's he doing?
He isn't wasting water.
What is it?
Drop litter / Dropping litter
What is it?
Waste water / Wasting water
What's she doing?
She isn't planting trees.
What is it?
Plant trees / Planting trees
What is it?
Pick up litter / Picking up litter
What's he doing?
He is stepping on trees.
What's she doing?
She is saving water.
What's he doing?
He is planting trees.
What is it?
Step on trees / Stepping on trees.
What's he doing?
He is wasting water.
What is it?
Save water / Saving water
What's she doing?
She is picking up litter.
What's he doing?
He isn't planting trees.
What's he doing?
He isn't picking up litter.
What's he doing?
He is dropping litter.