20.
0 121625 121633 121639 121643 121649 121651 121655 121661 121663 121669 121675 121679 121681 121685 121691 121693 121699 121703 121705 121709 121711 121715 121717 121719 121720 121721 121723 121724 121725 121727 121729 121733 121735 121739 121741 121745 121751 121753 121759 121763 121765 121769 121775 121781 121783 121789 121793 121795 121801 121805 121811 121819 159627
| Ways to Save the Environment | |
| Plant more trees | Choose a right ground.Plant a tree every month and(61)encourage your friends and your classmates to join you. |
| Walk more and drive less | Choose to walk(62)rather than drive your car.And each time you avoid using your car,you're doing something (63)helpful to cut down air(64)pollution. |
| Save water | It's we who use it and pollute it.The (65)simplest way to save water is turning off water taps after use. |