Whenever I enter the library, I see him at the back of the library reading.
Thank you for sending us ____ fresh vegetables of many kinds. You have done us ____ a great service.
___ 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.