Questions 72-78 are based on the following passage.
Americans are people obsessed with child-rearing. In their books, magazines, talk shows, parent training courses, White Houses conferences, and chats over the back fence, {{U}}(72) {{/U}}. Moreover, Americans do more than debate their theories; they translate them into action. They erect playgrounds for the youngsters' pleasure,{{U}} (73) {{/U}}, and train skilled specialists for their welfare. Whole industries in Americans are devoted to making children happy, healthy and wise.
{{U}} (74) {{/U}} . In fact, until very recently people considered childhood just a grief, unimportant prelude to adulthood and the real business of living. By and large, they either ignore children, beat them, or fondled them carelessly, {{U}}(75) {{/U}} . Whey they gave serious thought to children at all, people either conceived of them as miniature adults or as peculiar, unformed animals.
Through the ages the experiences of children have been as varied as its duration. {{U}}(76) {{/U}} Babies who have been nurtured exclusively by their mother in one generation are left with day-care workers in another. In some places {{U}}(77) {{/U}} , and carry heavy objects on their heads. In other places they have been taught complicated piano concerto.
But diverse as it has been, children has one common experience at its core and that is the social aspect of nurture. {{U}}(78) {{/U}} Because human young take so long to become independence, we think that civilization may have grown up around the need to feed and protect them. Sentences:
A. children have been trained to get through dangerous mountain passes
B. equip large schools for their education
C. All children need adults to bring them up.
D. Some children behaved badly but they received extra love.
E. But this interest in childhood is relatively new.
F. they endlessly debate the best ways to raise children
G. Action that would have provoked a beating in one era elicit extra loving care in another.
H. much as we would amuse ourselves with some little dogs