Dear Jenny, 
I’ve got the letter you wrote to me        December 5th last Friday. I’m very happy to hear that you’re doing well.
It’s been about two months since you left. I’m very glad      hear that your new job is interesting, but I’m sorry to hear that you don’t like Washington. I think you’ll like       better once you make more friends there. Good luck to you!
Thank you very much        your invitation,       I’m very sorry that I can’t go to your Christmas party on December 24th         my grandfather will come here that day to celebrate Christmas        our family. Please forgive (原谅) me! I hope you can come to New York to spend        New Year holiday with us.
Yours,
Lucy