I like the book so much that I'll buy it, .
A. no matter how it may cost
B. how may it cost
C. how much may it cost
D. however much it may cost
网友回答
A. no matter how it may cost
B. how may it cost
C. how much may it cost
(答案→)D. however much it may cost
解析：考查让步状语从句：句意：我很喜欢这本书，不管值多少钱我都会买下的。however无论怎样=no matter how，后面接形容词/副词+主谓，选D。