问题描述：
She is very dear to us.We have been prepared to do ______ it takes to save her life.
A.whichever B.however C.whatever D.whoever
答案是D而不是C,
问题解答：
我来补答
答案必须是C
你的句子We have been prepared to do whatever it takes to save her life.可以这样来处理：
1 把你的句子分成两句 We have been prepared to do everything.It takes everything to save her life.
2 再把这两句合并起来,变成定语从句：We have been prepared to do everything that （that==everything） It takes to save her life.
3 再把everything that 改写成whatever,这样就成了We have been prepared to do whatever it takes to save her life.
4 有用的句型：it takes 时间/ 精力 to do sth.-----做某事需要花费时间/精力
5 翻译：她对我们来说太重要了.我们已经准备不惜一切代价抢救她.
