帮忙写个作文，要初二水平

An unusual experience
There was an unusual experience happened to me, I and my brother visited Expo in Shanghai last year, my brother got lost while I was buying tickets. Then I turned to the policeman for help, under the assistance of him, I found my brother playing with a boy outside the station. Finally, I told my brother that he couldn't go away without my consent.

An unusual experience
There was an unusual experience happened to me, I and my brother visited Expo in Shanghai last year, my brother got lost while I was buying tickets. Then I turned to the policeman for help, under the assistance of him, I found my brother playing with a boy outside the station. Finally, I told my brother that he couldn't go away without my consent. There was an unusual experience happened to me, I and my brother visited Expo in Shanghai last year, my brother got lost while I was buying tickets. Then I turned to the policeman for help, under the assistance of him, I found my brother playing with a boy outside the station. Finally, I told my brother that he couldn't go away without my consent