For as long as possible if you whant to become really good
About 2 to 3 years.
9 yrs my dads one
That depends on your speed.
Train and train! If you want to be a long distance runner you have to have a lot of stamina, strengh and speed.
1+ to 2 years of colledge
to become an astronaut, you'll need to pass many tests and train for a long time and you have to be fit.
It would depend on how long the journey was.
How long it takes to become a correction officer depends upon where you are at. Some places will hire you on the spot and train you.
If I were to be a runner I would train by running everyday and exercising regularly. I would jog long distances and work my way up to running long distances.
LLLLLOOOOOOOONNNNGGGGG!!!!!!!!!!!! You have to train every day for a few hours for quite a while to become a tennis player! IF you wanna become a tennis player then i wish you good luck
A train would take about 26-31 hours depending on stops and how fast the train is going.