学进去

1． is Tree Planting Day. Many people will go up to the 2． and plant trees. Trees can make the air 3．. 4． and people can get food from them, too. But people are cutting down too many trees, it’s not good. It will bring 5． changes in the weather. It will be too cold or too wet in some places. It will be too hot or too dry in other places. So we must plant 6． trees. They will make the people 7．, and make our country more 8．. Do you want 9． trees? My family 10． up to the hill and planted many trees last year. Now the trees look nice.