Hi Sunny,
In Denmark it is tradition to congratulate the parents and/or the children of those who have birthday. As I do not know how to say "Happy birthday with your son", I will only say
Jake, 生日快乐!
I wish you guys a nice day and happiness for Jake.
Thanks Hajo! Are you really from Denmark? Wow,that was my dream counrty when I was a kid.
"Why don't we have an immortal soul?” asked the little mermaid mournfully; “I would give gladly all the hundreds of years that I have to live, to be a human being only for one day, and to have the hope of knowing the happiness of that glorious world above the stars. " oh,Den Lille Havfrue! Say hi to little mermaid for me please.
what happened to our other students? OK, So today I will give you a specail lesson.
我在安徒生的故乡等待你,我的美丽的人鱼公主。wo zai an tu sheng de gu xiang deng dai ni, wo de mei li de ren yu gong zhu.
wo zai an tu sheng de gu xiang deng dai ni, wo de mei li de ren yu gong zhu.=I'm at Hans Christian Andersen's hometown waiting for you, my beautiful mermaid princess.
wo(我)=I, zai(在)=am at, an tu sheng(安徒生)=Hans Christian Andersen, de(的)='s, gu xiang(故乡)=hometown, deng dai(等待)=waiting for you, wo de(我的)=my, mei li de(美丽的)=beautiful, ren yu gong zhu(人鱼公主)=mermaid princess.
Hopefully your lady likes that.