We should __________ water usage to save the planet.

Cutting down trees __________ nature.

We must __________ animals from hunters.

When you finish using your charger, you should __________ it.

Recycling helps to reduce __________.

Don’t __________ food. Eat what you take.

If we plant more trees, the __________ will be cleaner.

Before a picnic, we should __________ food and drinks.

When it is cold, people sometimes __________ trees for firewood.

To make new paper, we can __________ old paper.

Instead of throwing a bottle away, we can __________ it.

Throwing rubbish on the street __________ the city.

__________ trees makes the air cleaner.

If you __________ the garbage, you put plastic, glass and paper in different bins.

__________ rubbish from the ground helps keep the park clean.

To eat healthy food, we can __________ our own vegetables.

If we __________ the forest, animals will lose their homes.

When your phone battery is low, you need to __________ the charger.

Smoke from cars and factories is a kind of __________.