书面表达.英语练习.初中的,帮下忙

4个小孩在公园玩玩得很开心.然后他们都说走了走了.之后有个小孩说等一等我们丢东西了.他们就回去.他们都把垃圾捡了起来
说不能乱丢

提示词:on the way ,say,something,leave,go back,find,rubbish,understand,throw,take care of,
environment,duty,twenty minutes,pick up

Last Sunday,four children went to a park.It was a lovely day. The weather was warm and the sun was shining.The four children playing hide-and-seek games on the grass. After twenty minutes they were all tired, so they wanted left for home.Just as they walked on the way to the door of the park one of the child said:" Just a moment, we have left something on the grass". So all of them ran back quickly to the place where they played before.When the child cried just now picked up the rubbish and throw them into the dustbin(垃圾箱), all the other three chidren understood what they had left.When they put all the rubbish into the dustbin, they were all happy and said:"Yes, we should not throw the rubbish anywhere, it is our duty to take care of the envir