填空：The typical pre-industrial family not only had a good many children

, but numerous other dependents as well---grandparents, uncles, aunts and cousions. Such "extended" families were suited for survival in slow paced __1__ societies. But such families are hard to __2__. They are immobile.Industrialism demanded masses of workers ready and able to move off the land in pursuit of jobs, and to move again whenever necessary. Thus the extended family __3__ shed its excess weight and the so-called "nuclear" family emerged-a stripped-down, portable family unit __4__ only of parents and a small set of children. This new style. family, far more __5__ than the traditional extended family, became the standard model in all the industrial counties. Super-industrialism, however, the next stage of eco-technological development, __6__ even higher mobility. Thus we may expect many among the people of the future to carry the streamlinling process, a stePfurther by remaining children, cutting the family down to its more __7__ components, aman and a woman. Two people, perhaps with matched careers, will prove more efficient at navigating through education and social status, through job changes and geographic relocations, than teh ordinarily child-cluttered family.A __8__ may be the postponement of children, rather than childlessness. Men and women today are often torn in __9__ between a commitment to career and a commitment to children. In the future, many __10__ will sidestePthis problem by deferring the entire task of raising children until after retirement.

A)transplant

B)solution

C)gadually

D)transport

E)elemental

F)conflict

G)continually

H)mobile

I)couples

J)agricultural

k)including

L)compromise

M)requires

N)primary

O)consisting