r spat in a public place?Have you ever cut down trees?If your answers are "No",it means that you have already helped protect our environment.

　　It is our duty to keep our envionment clean and tidy. You might ask yourself,"Have I ever picked up some rubbish and thrown it into a dustbin?Have I ever collected waste paper or bottles for recycling?Have I ever planted any trees or flowers in or near my neighbourhood?"If your answers are"Yes",it means that you have already done something useful to improve the environment.

　　Now I want to say :Let`s do our best to make our world more beautiful!