假如你叫刘宏，你学校每年都在世界水日（World Water Day）开展丰富多彩的活动，宣传节约用水，你的笔友Jim所在的学校也要开展类似活动，请你写信向他介绍你们的活动情况（活动内容见下表）。
2. 文中不得出现真实的人名、校名等相关信息； 3. 文章长度；约100词（不包含已给的词数）。 参考词汇：take part in, put on short plays, speech competition, make poster, helpful, save, waster Dear Jim, Nice hearing from you. Let me tell you what we often do on World Water Day. Yours, Liu Hong |
One possible version：
Dear Jim,
Nice hearing from you. Let me tell you what we often do on World Water Day. On March 22nd all the teachers and students of the school take part in different activities.
Lots of students put on short plays. Some plays are funny, and they show us wasting water is bad for humans. Many students take part in the speech competition. They tell us what we should do to save water. Some teachers and students make posters and put them up in the school and neighborhood. In this way, more people know the World Water Day and join us.
All these activities are helpful. More and more people know the importance of water and begin to save it. Maybe you do the same.
Yours,
Liu Hong
参考词汇：take part in, put on short plays, speech competition, make poster, helpful, save, waster