A．When luck plays a role.
B．What determines success.
C．Whether practice makes perfect.
D．How important natural talent is.

A．It knocks at your door only once in a while.
B．It is something that no one can possibly create.
C．It comes naturally out of one’s self-confidence.
D．It means being good at seizing opportunities.

A．Luck rarely contributes to a person’s success.
B．One must have natural talent to be successful.
C．One should always be ready to seize opportunities.
D．Practice is essential to becoming good at something.