___________ hard I tried,I still couldn’t manage it.

题目

___________ hard I tried,I still couldn’t manage it.
A no matter B However C Although D Though
A C D

答案

B
无论我怎么样的努力……
如果是A的话 no matter 后面要加HOW
no matter how=however 无论怎样
C和D的意思在这里是一样的
在hard前面不能直接加although或though