Dear John,
Thank you for your letter that I got last week. 
I know you are interesting in computer games. But for me, I use my computer for accessing the Internet, especially sending emails to my colleagues by emails. I find it faster and cheaper compared with letters. In addition, I also send my photos and audio files by using the attachment. Besides, I use my computer to search information for my study. I can chat with my friends, share interesting information and learn wonderful things just by one click. I think computer is the most useful things I’ve ever had.
Hopefully you can use your PC in the most useful ways.
I’m looking forward to hearing from you.
 Best wishes
   Huyen