A.Marital birth rate almost keeps unchanged among college graduates.
B.Non-marital births have been decreasing among high-school graduates.
C.African-Americans have given birth to more non-marital children.
D.More high-school-educated whites have children before marriage.
A.providing opportunity for kids
B.giving more nourishment to kids
C.being involved in the education of kids
D.reading popular books to infants
A.tend to be more strict with children
B.forbid kids to think independently
C.overlook changes of the society
D.need training for education methods
A.Students from rich families don't need to study hard.
B.Parental education affects kids' academic results greatly.
C.Kids in poor families can hardly graduate from colleges.
D.Family background can make up for academic flaws.