Long time no see
Well.... this is a pretty slang saying. This is obviously an informal letter so you have lots of flexibility. But, if this is for some writing purpose, they you should not have slang phrases in your writing.
Hope all's well in your world!
.... this one is fine
I would like to tell you thatiI have a party next week on Tuesday September 23,and i would like to invite you.I am sure you will have a great
I am going to have a party at my place on next Tuesday, 23rd September. I am inviting you too and I am sure you would be there and have great fun with us.As you know due to my new job, i moved to a new address which is 155, Fitz Boy Ave, Birmingham.
I guess you know that I have moved into a new address, which is 155, Fitz Boy Ave, Birmingham.I know that from your home to here you have to pass through M41 Motorway.
It's not very difficult to find. Take M41 Motorway...