Надо! i (1 be) in year 9 at college in sale. one day at the lesson of science we (2 make) an experiment called down the drain. we (3 have) a tub of water, and we (4 put) in it all the different substances that pollute our water. it ( 5 be) horrifying to see how bad the state of the water was once we (6 finish). in our next lesson we (7 put) our polluted water through a simulated water cycle; when the water (8 come out) the other end it (9 be) clean and pure, but we (1 0 learn) that all the water can never be made reusable. this experiment (1 1 be) a great one, and the teachers (12) (should, to congratulate) on giving us such n great opportunity to learn during this unit about pollution, global warming, climate change and the creation of our earth; i (1 3 think) more young children (1 4 , to give) this opportunity as we are the future and wi thout the knowledge of what is wrong we can do nothing to change it.
