we took each other's notebook by mistake 我们彼此拿错了笔记

Dear Jack,
　　In June when you were visiting Beijing,on the last day of your trip a fare well party was given at the Youth Palace.At the party I sat next to you.Then at the end when we went away we took each other's notebook by mistake.I discovered this only afterwards when I looked into the notebook and found your name and address inside.I'm now sending your notebook by post to you.Will you please send my notebook to me at the address which is given in my letter? Thank you very much.
　　I hope you will visit Beijing again soon.
　　Your Chinese friend,
　　Li Hua

亲爱的杰克，
在六月的时候，你来北京探亲，您旅行的最后一天是在少年宫举行的篝火晚会上。在晚会上我坐在你旁边。最后当我们走的时候，我们把彼此的笔记本拿错了。当我发现时已是后来了，我看着笔记本和发现了你的名字和地址。我现在把你的笔记本邮寄给你。请你把我的笔记本也寄给我好吗？这是我的信上提供的地址。非常感谢你。
我希望你很快再访问北京。
你的中国朋友，
李华