In the past,most American mother开头的完形填空答案

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In the past,most American mothers were at home to take care of their children during the day.Now,　21　,many mothers are working.More than half of the American women　 22　 young children have　 23　 outside the house.
American families settled the child care　 24　 in different ways.Some parents permit　 25　 children to stay at home alone after school.The parents　 26　 be sure the children,usually not younger than 10 years old,understand　 27　 rules and can deal with emergencies（意外事故）.Other parents say they would　 28　 permit their children to be at home alone.They usually　 29　 someone to take care of the children.
Some parents in the USA find their own way to　 30　 cost of child care.They join child care　 31　.Each person in the group　 32　 for the children of other group　 33　 at different times.Some parents ask local churches,schools and social organizations to help　 34　 activities for the children.These child care choices often cost little or no money.Many American parents,however,still　 35　 with the problem of finding good child care at a low price.
21．A．therefore B．otherwise C．thus D．however
22．A．like B．as C．with D．for
23．A．children B．jobs C．houses D．money
24．A．problem B．question C．chance D．choice
25．A．older B．younger C．sicker D．happier
26．A．can B．must C．may D．ought
27．A．dangerous B．safety C．funny D．true
28．A．rather B．certainly C．always D．never
29．A．send B．stop C．pay D．invite
30.A．protect B．end C．reduce D．increase
31．A．school B．group C．clubs D．hospitals
32．A．cares B．sends C．asks D．pays
33．A．strangers B．members C．officials D．teachers
34．A．equip B．offer C．play D．join
35．A．enjoy B．discuss C．quarrel D．struggle
答案：
21~25 .DCBAB
26~30 BBDCC
31~35 BABBB