2) Complete the sentences with the words below. 2) 1 paper and 5 1 Air is a serious problem in my city 2 Turn off the please. You shouldn't waste energy. 3 Mandy and glass bottles. 4 People should never trees because we need them for oxygen. 5 Turn off the tap! Don't water! 6 You mustn't throw around. 7 We should use less to protect our planet 8 It's very important to keep our clean. waste environment lights electricity recycle pollution rubbish cut down 8 16 11​