Our planet is in big trouble – animals are disappearing, the sea and the air are dirty. But there are many different things we can do to protect the environment. First, recycle everything you can. Don’t throw away plastic bottles, glass jars, cardboard boxes or cans. We can (38) ___reuse____ them to store food, toys or grow flowers. Second, why not walk or cycle to school or work? It’s (39) ___free____, good exercise and good for the environment. Third, don’t waste (40) ___electricity____. Switch the lights off when you leave the room. And keep the city clean by (41) __picking up_____ litter off the streets. When you go shopping, bring your own bags instead of taking (42) ___ plastic____ bags. Together we can make a big difference and help save the planet.