28. Those who bring sunshine into the lives of others cannot keep ____ from themselves.
The police say there is a $50,000 _______ for any information that helps them find the killer.
Most whales must come up for air after several minutes, _______ a few can stay under water for an hour or more.
The numbers that researchers get from the experiments can be _______, just like number puzzles.
_______ the house is empty, memories flood my mind of a time when it was filled with life.
By the time a child is five, he _______ hundreds of hours of television.