Questions 19 to 22 are based on the conversation you have just heard.

A) Failure must crane before success. C) Failures can be avoided.
B) Failure is not all bad. D) Failures are unavoidable..

A．Most people passed the stone as if nothing had happened.
B．Most people did nothing but complain.
C．Most people tried to move the stone away.
D．Most people fell against the stone.