问题
选择题
_________ you may have, you should gather your courage to face the challenge.
A．Whatever serious a problem
B．However serious a problem
C．However a serious problem
D．No matter how a serious problem
答案
答案：B
题目分析：考查让步状语从句：句意：无论你可能遇到多么严重的问题，你都要鼓足勇气面对挑战。Whatever后面接名词，排除A。however/no matter how后面可以接adj+冠词+名词，CD都是错的，选B。