请教OG purple SC 76

pamelayeah

76.State officials report that soaring rates of liability insurance have risen to force cutbacks in the operations of everything from local governments and school districts to day-care centers and recreational facilities.

(A)rates of liability insurance have risen to force

(B)rates of liability insurance are a force for

(C)rates for liability insurance are forcing

(D)rises in liability insurance rates are forcing

(E)liability insurance rates have risen to force

答案是C

怎么推断出用progessive verb rense to indicate this is an ongoing problem?

pamelayeah

能有哪位大俠帮忙解决一下吗?

pamelayeah

是不是因为rates and liability 之间不是从属的关系,所以不能用of呢?如果是的话,我就明白了啊!能有人帮我确认一下吗??

ffES

进行式标志是soaring

rates of 比率

rates for 费用

pamelayeah

明白.谢谢了啊,清楚了!!!