yesterday was tree planting day. the teachers asked us to plant trees at the corner of our playground. at 3:00 in the afternoon, we got there. our teacher showed us how to plant trees,then we started to do it. some dug the pits, some put trees in them and others watered them. we planted a lot of trees. when we finished our work, it was nearly dark.

【譯文】

昨天是植樹節。老師要求我們在操場拐角處種樹。下午3點我們到了那里。老師給我們示范怎樣種樹，然后我們就開始干起來。一些同學挖樹坑，一些同學往樹坑里放樹，另一些人給樹澆水。我們種了很多樹。當我們結束工作時，天幾乎黑了