Mr. Chen drove all the ___ to Wuhan to attend the meeting.

. Although Miss Black began her _______ by singing in a local pop group, she is now a famous singer in the world.

 You can't see the___________ now for they are having a meeting at the moment.

You have to be accurate in this job，because a small mistake can make a big ________.

Do you know the        of the saying I just quoted?