从方框中选择适当的词，并用其正确形式填空.
| suggest, measure, drop, live, simple, drive, thank, encourage, place, avoid |
Our environment is getting worse and worse. So we must take some 1 to save it. Here are some 2 for us. Plant more trees: Choose a 3 near your house or workplace. Plant several trees every spring and 4 your friends and classmates to join you. There will come a day when you have green land 5 to your hard work. Walk more and drive less: Choose to walk instead of 6 your car. Walk or ride a bicycle to work if it’s not far. Each time you 7 using your car, you’re doing something helpful for the environment. Save water: Water is important for 8 things. The 9 way to save water is turning off water taps after use. Don’t pollute rivers by 10 rubbish or other waste. Follow the ideas in our daily life and try to be a greener person.