OG-13

lingxia

13. 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

In choices A and B, rates of is incorrect; when rates means "prices charged," it should be followed by for.

答案没什么疑问，不过上面这句解释看不懂，不明白为什么要把of 改成for

能否解释解释
谢谢！

crusaders

rate 可以表示 ”费用“（prices charged）
e.g.
Some hotels offer special rates for children.
做费用时用for 表示 费用的对象.