Attractive the device might seem, “my wife has already done that by herself” was a mon response after people seeing it when it was introduced on show this week.
A. while
B. although
C. as
D. when
网友回答
A. while
B. although
(答案→)C. as
D. when
解析：考查让步状语从句的固定句式。固定句式：形容词/副词/单数名词+as/though 其它成分=Though引导的让步状语从句。本题的Attractive as the device might seem=Though the device might seem attractive故C正确。