The Klondike was the_____ of one of the biggest gold rushes the world has ever known.
They knew her very well. They had seen her ____up from childhood.
Mrs. Smith warned her husband _____after drinking again and again.
The first textbooks _____for teaching English as a foreign language came out in the 16th century.
There was a terrible noise _______the sudden burst of light.
When I handed the report to John, he said that George was the person______.