问题补充：
This is a very cute dog. I’ll take it,.
A. how much may it cost
B. how much it may cost.
C. however much it may cost
D. no matter how it may cost
答案：
A. how much may it cost
B. how much it may cost.
(答案→)C. however much it may cost
D. no matter how it may cost
解析：句意，这是一只非常漂亮的狗。我要买它，不管花多少钱。题干中的让步状语从句应采用however much it may cost或者no matter how much it may cost的形式。
