Questions 22 to 25 are based on the conversation you have just heard.

A．It is difficult for people living in a Stone Age culture to move into a modern world.
B．Invention is a new idea to modern people.
C．We human beings have abilities to solve such problems as war and pollution.
D．What we need is demands from others to work for a better future.

A．black students to go to racially segregated schools
B．that it was unlawful to force Negro children to attend racially segregated schools
C．that black students shouldn’t attend schools with white classmates
D．that the schools black children attended were of little difference