Last weekend, my sister and I were shopping in the supermarket. Suddenly, a strange man caught our
attention. The man looked young and he wore a black coat and jeans. He looked here and there for a while.
Then he quickly stole a wallet from an old woman's bag and put it into his pocket. We wanted to stop him
but we were too scared, so we followed him and called the police with our phone quietly. A few minutes
later, a policeman came and caught the criminal. The policeman praised us a lot and said we were smart
and brave.