Conversation so far:
What did Bob Cousy do in high school?
Bob Cousy entered Andrew Jackson High School in St Albans. His basketball success was not immediate, and in fact he was cut from the school team in his first year.
Did Bob Cousy play basketball in his second year of high school?
The next year, Bob Cousy was again cut during the tryouts for the school basketball team.
When did Bob Cousy play basketball in high school?
Bob Cousy broke his right hand. The injury forced him to play left-handed, making him effectively ambidextrous. During a game, the school basketball coach saw him play.
What did Bob Cousy's high school coach do after seeing him play ambidextrously?
Bob Cousy was impressed by the budding star's two-handed ability and invited Cousy to come to practice the following day to try out for the junior varsity team.
Did Bob Cousy make the junior varsity basketball team in high school?
Bob Cousy did well enough to become a permanent member of the JV squad.

Question: When did he start to play basketball in high school?
Self-contained rewrite: When did Bob Cousy start to play basketball in high school?