. John’s success has nothing to do with good luck. It is years of hard work _________has made him what he is today.
The lion is considered the king of the forest as it is a(n) _____ of courage and power.
Just as a famous Chinese saying goes, a timely heavy snow is a ______ of good harvest next year.
Those black clouds are a sure _____ that it’s going to rain.
She raised her finger to her lips as _____ for silence.
Shortly after the accident, _____ police were sent to the spot to keep order.