Translation of Langlauf

There is a small misunderstanding about the homework. I can do them, but they will be too confusing? I am trying to find the article from where I took the sentences in order to ease the task for all students.
There are many mountains and lakes in our district in the central Switzerland. I'm married and we have a son named Joe, he is 2 years old. I have worked as an engineer at the Swiss Federal Railways.
I owe it to my boss who allowed me to make many trips. In Argentina, I've been in many places, but unfortunately I have not seen enough of it yet. It is indeed a huge country, do you agree?