1`The three kinds of pollution_around_____us are air pollution,noise and watre pollution 2`__without____pollution,our planrt will become more beautiful and comfortable3`the factory proces electricity_by_____burning waste4`i think we should write a letter__to____the newspaper about the pollution5`people who work and live__near____noisy conditions may become deaf6`A paper factory is always pouring waste water__into____zhe river near our school7`The article is_on_/about____air pollution in china 8`What should we do__as____students to protect the environment9`The students are making so much noise___ring___the break
1 around2 without3 by4 to5 near6 into7 about8 as9 ring