There are many ways to save the environment if you would like. In this passage, you can find some ways.

    Plant more trees. Choose a right ground____ your house or workplace. Unless there's any rule stopping you growing trees in that ____, go ahead and grow trees. Plant a tree every month and ____ your friends and classmates to join you. More and more trees have been planted. ____to your hard work, you have more and more green land.

    Walk more and drive less. Choose to walk ____ than drive your car. Walk or ride a bicycle to work if it's not very far. Not only cycling but walking is good exercise. And each time you avoid using your car, you're doing something ____ to cut down airpollution. You are saving fuel, saving money and keeping fit as well.

    Save water. Water ____ very important for living things. It's we who use and pollute it. The simplest way to save water is turning ____water taps after use. When you visit a beach, make sure that you don't ____ waste around. Do not pollute rivers by dropping garbage or other waste. Water is so precious, so we____ waste or pollute it.