Hi!  I just got back from a tennis match and I'm beat!  It's a sport that is played at all levels of society and at all ages
I love tennis.  I wonder how long it has existed as a sport?
The way it is played today originated in the late 19th century and was called lawn tennis!  Isn't that hilarious! Lawn tennis!
It makes sense, a lot of tennis courts are still grass courts.  I wonder when they began to use clay and pavement for courts.
I really don't know!  But I do know that different surfaces can be used, and each affects the playing style in its own way!
I bet that is true.  Which do you think is the most popular?
It's usually either grass, clay or a hard material, but if I had to guess, I'd say clay is the most popular, or at least some sort of hard material
I have played on clay and on cement courts.  How popular is tennis globally, do you think?
I think it's quite popular, especially since it's an Olympic sport!  I think I need a nap now after playing tennis all morning!  I'm getting sleepy!
Lol, tennis is quite strenuous.  I imagine it's popularity has waned a bit over the last couple of decades.