how often have you gone horseback riding?

how often have you gone horseback riding?
who can translate it?it's better to explain in detail.
and have you ever fallen off one?
but i came close once.
what is the meaning of the one and came close

how often have you gone horseback riding?
你经常骑马吗?
horseback riding 骑马
Some people like horseback riding,but I prefer golf as a hobby.
有些人喜欢骑马,但我却喜欢打高尔夫.
have you ever fallen off once(不是one)?
你从马上掉下来过吗?
but i came close（差一点） once.
不过有一次差一点（掉下来）
He came close to pass the test.
他差点通过此次测验.