----------------the problem may be ,we must solve it ourselves
问题描述：
----------------the problem may be ,we must solve it ourselves
A whatever difficult B how difficult C however difficult D no matter what difficult
为什么 各个分析
答
C 你记住一句话 what 冠、形、名词连,形容词副词紧跟How…而为什么不是How可以翻译出来,however代表的是无论什么