Once, I stole my mother’s money, because I wanted to buy the snack so much and I happened to see my mother’s wallet on the desk, so I took some money.

Once, I stole my mother’s money, because I wanted to buy the snack so much and I happened to see my mother’s wallet on the desk, so I took some money. I was so afraid when I saw my mother, but she seemed to not notice what I did. I felt so guilty, I knew I needed to do the right thing, so I confessed to my mother, she was so happy for my honesty. 
曾经，我偷了妈妈的钱，因为我很想要买零食，刚好我看到妈妈的钱包放在桌子上，所以我就拿了一些钱。当我看到妈妈的时候，我很害怕，但是她似乎没发现我的所作所为。我觉得很惭愧，我知道我要做正确的事情，所以我向妈妈坦白，她很开心，因为我的诚实。