B. Read the following passage and fill in each blank with a suitable word or phrase from the box. There is ONE word/phrase that you dont need. reuse electricity water plastic free picking up 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. Dont throw away plastic bottles, glass jars, cardboard boxes or cans. We can (38) _______ them to store food, toys or grow flowers. Second, why not walk or cycle to school or work? Its (39) _______, good exercise and good for the environment. Third, dont waste (40) _______. Switch the lights off when you leave the room. And keep the city clean by (41) _______ litter off the streets. When you go shopping, bring your own bags instead of taking (42) _______ bags. Together we can make a big difference and help save the planet.