should/shouldn't

We _______________________ cut down trees.

We _____________________prevent Global Warming.

We ______________recycle glasses, bottles, papers and batteries.

We __________________________ save the energy.

We __________________________throw rubbish around.

We __________ turn off electrical devices when we don’t use them.

We ___________________________ plant trees.

We _____________________pollute the environment

We _____________________ use wind and solar energy.

We ______________________ use environmentally friendly products.