Factories must stop ____the environment.

Factories must stop ____the environment. factories must stop ___________ the environment A polluting We must stop _____(pollution) our environment. We must try our best to stop the environment pollution____a We must take actions to stop factories ____ ____ ___ the far The environment is becoming worse and worse .We must stop th 1.Thegovernment should make laws to stop factories _____ let people should stop _______the environment.(pollute) 1.We are waiting ____the bus stop We shuold collect some rubbish ____the environment .A.to hel （ ）4.We must _____the factories from producing harmful gases We must protect our environment well.