Now paper still come from trees. Unfortunately, we use a lot of paper every day. We mustn"t waste paper, or there will not have any trees leaving on the earth. No trees means no paper. We need 17 trees make one ton of paper. We must start using fewer paper. How can we save paper? Firstly, we can use both sides of paper. We can reuse again envelopes. We can use plastic cups and plates instead of paper one. We can either use handkerchiefs instead of paper tissues. Beside, we can use fewer paper shopping bags and we can reuse these paper bags late. _________________________________________________________________________________________