Translation of broomstick in Spanish

I would like to give you a proofreader's project. Proof reading sample sentences that were entered into the dictionary by our users. It is a very tough project and needs a lot of discipline and patience.
My correction were added and highlighted with yellow markers and attached to this email. Tell me now if you have any questions about grammar rules, since I was a teacher 10 years ago.
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?