The wealth of a country should be measured _____ the wealth and happiness of its people as well as the material goods it can produce.
While watching television, __________.
John, look at the time. ___________ you play the piano at such a late hour?
_____in a well—known university is what everybody wishes for.
“You can’t catch me!” Janet shouted, __________ away.
_________, the more expensive the camera, the better its quality.