【英语作文】帮我找一下里面的语法错误，文章字数不多，会给好评！谢谢！（文章在补充内容里面。）

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Last week ,i went to Dan Yang where is my hometown，and i missed relatives and friends there very much.First，we visited my grandmother. She looked much older than before. Her legs had been hurt for a long time. Looking at this，my mum can’t help feeling sad.Then ,we went to Wan Shan Park, When i was a child, i always hung out with friends, and Wan Shan Park must be the best choice to play. Now i go there again, the colourful flowers are the same as before , the sky is as blue as it used to. Nonetheless, something has changed.Finally, we came back to my uncle's home .My pet dog whose name is Xiao Hei was still there and we hadn't seen each other for three years. When i saw him, i just felt a little blue. Puppy , a smart boy , he still remembered me and recognziedme at once.