✔ 最佳答案
Dear Aunt and Uncle,
How are you? I felt so sorry that I lost your son, and I hope that you would forgive me. My parents also think that I should explain to you how this could happen on me.
Last Saturday, I looked after my cousin as you asked me while you went away. However, my cousin and I felt bored, so I decided to take him to a park for a walk where it is not far from my home. While we were walking along the flower path, my mobile phone rang and I answered it immediately. I finished the call in ten seconds, then I looked for my cousin, but he had disappeared. It all happened so quickly. I started screaming for him and tried to find out him but I could not. I began to get worried and burst into tears. I looked up and down the path again. When I passed a place where a lot of pets ran into, I saw a kid standing by a pond and looking at a rabbit. I was very pleased because he was my cousin. I realized that he caught after a rabbit and the rabbit lead him to the place. Probably, this is my first time to look after a kid, so I had no experience at all. Anyways, it was my fault and no one to be blamed but myself.
I hope you would forgive me and I promise I would never make the same mistake again!
Lots of love,
Chris