—Why are you so depressed? —I _____ my MP4 player on the bus.
___ nearly all behavior is learned behavior is a basic assumption of social scientists.
My command of English is not ____ yours.
The generous donation from China to the sufferers in the killing Indian Ocean Quake-tsunami has ____ the Chinese people’s unselfishness and internationalism.
Parents are advised to take pressure ____ a child and give him some encouragement before an exam.
Women have ____ equal say in affairs at home.