My electricity bill increased a lot last month.
You should turn off all the lights when you don't need them.
We take out about 5 bags of garbage from my house every week.
You should separate the recyclables from the regular waste.
There is a terrible smell coming out of the river next to our school.
We must make a cleaning campaign so people stop throwing garbage in the river.
There aren't any trees in my neighborhood.
You should plant some around the area.
Gasoline prices are rising every month and I use my car to go everywhere.
You should use public transportation.
We use the air conditioning everyday, even at night. Now I feel sick.
You should use a fan instead.
We always need more than 4 plastic bags to take our grocieries home.
You must not use plastic bags anymore. Use a cloth reusable bag.
My family and I eat chicken or meat every day.
You should eat more vegetables.
I need to buy a new dress for the graduation dance.
You should rewear old dresses or borrow a dress.
Every time my dad washes the car he uses lots of water.
He must use a bucket not the hose.
Last year the media reported a great forest fire in California due to irresponsible smokers.
People must not throw their cigarettes away in forest areas.
We usually buy lots of things on Black Friday just because they are cheap.
You shouldn't buy things you don't need.
My brother always uses lots of chlorine when he cleans.
He should buy more eco-friendly products.
Many governments use oil as their main source of energy fossil fuels.
The must change it for clean sources of energy.
My friend and classmate live next to my house and yet we always take separate cars.
You should carpool when possible.
I'm ready to change my car for a new one. Which one should I get?
You should buy an electric or hybrid car.
