分类：教育/科学-外语学习-英语考试
问题：这题选哪个？请教了______difficultthesitua 
______ difficult the suation was, we managed to survive.   A. How       B. However     C. What       D. When
回答：选B
意思是  无论条件多么艰苦，我们都要设法求生。
However=no  matter  how