有关时态的SC题，诚信讨论！

renkeyun

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

求大侠区别A,B,C 选项，查阅的资料显示：
rates of liability insurance are a force for

rates for liability insurance are forcing



rates of liability insurance are a force 文章想说，是一种力量呢，还是想说一个动作？

显然，有时候rates是力量有时候不是，这里不是说一种属性，而是要求说有一个动作。

但是对A,B的区别还是分不清！


Eliability insurance rates have risen to force

摇曳的叶子

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
rate of表示"...率”，比如rate of return回报率，rate of growth 增长率
rate for表示“...的价格"，比如rate for tickets 门票
从这一个知识点就可以选出答案。
另外：
1、rates of liability insurance中的rates是一种measurement，不能缩写成liability insurance rates。
即使rates of liability insurance语法正确，但是nonsense
2、soaring和rise表达reluctant

448258130

摇曳的叶子 发表于 2013-9-5 21:30
State officials report that soaring rates of liability insurance have risen to force cutbacks in the ...

大神出没，菜鸟观望中

摇曳的叶子

448258130 发表于 2013-9-5 21:59
大神出没，菜鸟观望中

非大神，和大家一样在努力学习
study mutually and advance together