Thanks for your letter and your news.
I live in Canberra. It is very small, but it's the capital city of Australia.
I'm a son, but my parents have passed away.
I have a son. He is married, and he and his wife live in Canberra, too.
There are lots of kangaroos, koalas, wallabies and possums in Canberra.
We have lots of schools, colleges and universities in Canberra.
We also have lots of football and cricket teams here.
There are lots of overseas students studying in Canberra, too.
Your English is very good. It is far better than my Thai. :)