Complete the following text with right forms of the verbs given in the box:

throwa	kill	work	have.	release
ensure	be	live	originate	pollute

Rivers generally (a) _____from a mountain or a lake. They (b) ______ very much important for our existence and economy. But unfortunately we are (c) _________ our rivers by throwing industrial and domestic wastes. Most of the industries (d) ________ waste treatment plants. These kinds of industries are (e)______ liquid wastes directly and continuously (f)________ the water. Our unconscious people also (g) __________ different kinds of waste materials into rivers. So, to keep the existence of fishes and other species (h)___________ in the water is impossible. It is high time the government and the people (i)__________ together to save the rivers. Otherwise a happy, prosperous and pollution free environment can't be (j)_________ for the next generation.