题目：_____you may have, you should gather your courage to face the challenge.
A. However a serious problem
B. What a serious problem
C. However serious a problem
D. What serious a problem
喵查答案：C
根据句意“无论你有多么严重的问题，你都应该鼓起勇气面对挑战”，而however表让步时其顺序应是：however + 形容词 + 主语 + 谓语。however做连接副词，相当于no matter how,后接形容词或副词，意为“无论、不管” ，引导让步状语从句，其序为“however+形容词、副词+主语+谓语”。
