Devoted to the rescue of the earthquake victims, the volunteers felt but regret.
A. anything
B. nothing
C. something
D. somehow
网友回答
(答案→)A. anything
B. nothing
C. something
D. somehow
解析：考查不定代词：A. anything任何事情，B. nothing没有什么C. something某些东西D. somehow不知怎样，这题主要是和but的搭配，anything but一点也不， nothing but正是，句意：致力于地震受害者的救援，志愿者感到一点也不遗憾。选A。