A．Making the problem of food shortage even more serious.
B．Increasing the awareness of the world’s large population.
C．Increasing the number of babies who survive early childhood.
D．Providing world population with more nutrition ever before.

A．He hasn’t been in a play for a long time.
B．He has to rearrange his evening schedule.
C．He might not like the way the group works.
D．His schoolwork has taken up most of his time.