Dear Paul,
I'm writing to thank you for a really enjoyable visit. It was good to see you after so long, and to be able to spend some time with you, talking about old school friends and teachers.
Now that I'm back home, I keep thinking about how good it was to be somewhere quiet and peaceful. I have particularly enjoyed our trip to the wildlife sanctuary and appreciated the opportunity to see so many rare birds and animals. It is made me think that I should try to do more to protect them, so I am having a look on the internet to see what sort of organization there are.
Perhaps next time we get together you could come and visit me. There are plenty of places we can go and my brother would really like to see you. Let me know when you might be free to come here, and we can fix something up.
Look forward to hearing from you soon.
Yours Sincerely,
Robert
Dear Paul,
I'm writing to thank you for a  
really
 enjoyable visit. It was  
good
 to  
see
 you after  
so
 long, and to be able to spend  
some
 time with you, talking about  
old
 school friends and teachers. 
Now
 that I'm back home, I  
keep
 thinking about how  
good
 it was to be somewhere quiet and peaceful. I have  
particularly
 enjoyed our trip to the wildlife sanctuary and appreciated the opportunity to  
see
  so
  many
 rare birds and animals. It  
is made
 me  
think
 that I should try to do more to protect them,  
so
 I am having a look on the internet to  
see
 what sort of organization there are.
Perhaps  
next
 time we  
get
 together you could  
come
 and visit me. There are  
plenty
 of places we can go and my brother would  
really
 like to  
see
 you.  
Let
 me know when you might be free to  
come
 here, and we can  
fix
 something up.
Look forward to hearing from you  
soon
.
Yours  
Sincerely
,
Robert