hello have you ever been to canada?
Not yet, but I have several friends in Canada that I would love to visit someday!
the us/canada border is the world longest bi-national land border
Wow I did not know that. I hear Canada has some beautiful scenery and landmarks.
most of canada has a cold wintery climate, but the southern areas still have warm summers
I know, my friend is always complaining of the cold! 
canada is sparsely populated because of all the mountains and tundra
It is, but they still have their busy areas full of people.