问题
选择题
The little girl is seriously ill. Luckily we have decided to do ______ it takes to help.
A．whichever
B．whatever
C．whenever
D．however
答案
答案：B
考察宾语从句。Whatever引导宾语从句Whatever it takes to help，并作为take的宾语。CD是副词，不能在句中作宾语。A是指特定范围之内的某一个。