well prepared you are, you still need a lot of luck in mountain climbing.
A. However
B. Whatever
C. No matter
D. Although
网友回答
(答案→)A. However
B. Whatever
C. No matter
D. Although
解析：考查让步状语从句。横线后面有形容词短语well prepared，说明只能使用however对其进行修饰。Whatever后面接名词，no matter后面接特殊疑问词。句意：无论你做了多么好的准备，在登山的时候你还是需要很多的运气。故A正确。