Fill in the gaps with the given words. waste water, read this book about ecology, a plastic bag, reuse, collect rubbish, clean out this pond, recycle cans, build nesting boxes, save a lot of energy, plant flowers. I’m going to ______________ in my garden. It will be fragrant in spring. I think we should ______________. Animals can hurt their legs if they step on them. Let’s ______________ around our block of flats. It’s starting to smell and some stray dogs already live there. My father and I always _________________ so the birds could lay their eggs. Don’t _________________ when you brush your teeth. If we _______________, fish may come back. You really should ________________________. You can learn a lot of useful things from it. You can _________________ if you plug out all your devices for a night. Don’t buy _______________ in the shop. Take this reusable shopping bag. If you don’t like your T-shirt, don’t throw it away! You can __________it making a pillow for your cat, for example.