此题要求改正所给短文中的错误。对标题号的每一行作出判断：如无错误，则在该行右边横线上画一个勾（√）；如有错误（每行只有一个错误）。则按下列情况改正：　　
该行多一个词：把多余的词用斜线（＼）划掉，并在该行右边横线上写出该词，且也用斜线划掉。　　
该行缺一个词：在缺词处加一个漏字符号（∧），并在该行右边横线上写出该加的词。　　
该行错一个词：在错的词下面划一个横线（___），并在该行右边横线上写出改正后的词。　　
注意：该行若无错, 不要改。　　
It was sunny this afternoon. Mum and I go to               ________________　　
the park where is near my home for a walk.               ________________　　
When we were walking, I saw the little girl. She             ________________　　
was eating a banana. After she finished eating them,     ________________　　
she threw the banana skin on the ground into the         ________________　　
park. I walked over to pick it and told her it                                          　　
was wrong to do so. If all of us do like that,                   　　
the park has become dirty. Then we can’t                         ________________　　
enjoy by ourselves in it. All of us must                          ________________　　
improve our environment and then we can                        ________________　　
make our environment clean but beautiful.                         ________________