I am Zhang Ming. Last Saturday, I took part in the Sandra Environmental Competition. As a volunteer, I put up posters and distribute some advertisements. In addition, we volunteers exchange streets and parks together. Although we are very tired, we still feel very happy and worthwhile.

In my opinion, being a volunteer is a good experience. This is an opportunity for us to improve our work efficiency and repay the society. This is really a valuable lesson for teenagers. Therefore, I suggest that you should try to participate in such activities and become a volunteer.

Yours, sincerely,

Zhang Ming.