11- I'm disappointed 12- Everyone is responsible for keeping the environment 13- In order to minimize pollution, students have to pick up the garbage - environment - thing) people have spoiled this area. (when - that if - how) (unpolluted - pollution- polluting - pollutant) and throw it into a trash bin. pollution 14- The book will provide the information 15- Mr Smith has - - on you. (at - for - into) provided a picnic lunch for us. (kind, kindness, kindly, kinds) 16- Because plastic bags are hard to they will cause pollution. (dissolve - wrap - tear - collect) transport is a good way to reduce traffic jams and air pollution. (common-private-train-public) motorbikes? (replacing for -in spite of - instead of - instead) 19- Deforestation is against the law. Everyone must take part in deforestation. (supporting-preventing- 17- Using 18- What about using public buses advocating - supplying) 20- I think people should use tree leaves for to food. (wrapping - rolling making recycling) - >