A.It is important to increase the size of the middle class.
B.It is highly important to expand the metropolitan areas.
C.It is most imperative to focus our efforts on the elimination of income inequality.
D.It is better to start from the community to help poor children move up the social ladder.
A.She is impatient to learn computer programming.
B.She is unaware her operation system is outdated.
C.She is unable to use the new computer program.
D.She is amazed at the fast change of technology.