The two iPads are both in fashion and of good quality, but of them are not on sale. So you’d better make your decision as soon as possible.
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.