谁帮我改改英语作文啊！？（初三）

老奶奶没有正在发现这个说法，应改为 An old lady next to me found something lost.

最后一句话有语病，应把greatst改为great
其余大的语法错误应该没有。可以好好修饰一下，有文采一些。
望采纳

整个文章比较Chinglish，意思有些重复哆嗦. 部分词语词性不太准确。
我不改变你的原意，改为以下：

Happiness is everywhere. I feel glad when helping others.
On a suuny day, I walked along the street. Suddenly I found an old lady lost something, but her eyesight was so bad that she looked so helpless and worried. I came to her and asked what I could do for her. At last, I found the key she lost in the corner. She was too happy to say a single word.
In a word, helping others is of great happiness.

你的文章主语注意时态搭配。
你能把内容敲打出来吗？图片内容修改很不方便。

祝你开心如意！