having some money raises our level of happiness, having too much money does not.
A. While
B. When
C. As
D. Until
网友回答
(答案→)A. While
B. When
C. As
D. Until
解析：连词辨析题。A. While 虽然（连接让步状语从句） B. When 当…时候（连接时间状语从句） C. As 虽然（连接让步状语从句而且要倒装） D. Until 直到（连接时间状语从句） 句意为：虽然钱可以提高我们的幸福感但是太多的钱不能。 选A