Do you say" he found the he was good in running or good at running or ..?"?

This is a preposition question I am confuse which to chose thanks for helping or:This is a preposition question I am confuse which to chose thanks for

This is a preposition question I am confuse which to chose thanks for helping

or:This is a preposition question I am confuse which to chose thanks for helping


or:its always good at


or:It's always \"good at\"He is good at Physics.He is good at running.

Tags:found,question,good,