Insomeschoolschildrenwhoprefertoreadbooksratherthan________footballbecomesocialoutcasts(被抛弃者).
A、playEach year in the United States, many black teenagers _______ of school, either because they cannot keep up or they have to work to support their family.
It________asashocktorealizethatIwasnotaloneintheroom.
It is useful to science _______ the earth as an object in space.
He thoroughly understood the society __________.
________ so many people in the United States been out of work as today.
