Americans spend more money than they have by using credit cards, so they are always .
A. in peace
B. in danger
C. in relief
D. in debt
网友回答
A. in peace
B. in danger
C. in relief
(答案→)D. in debt
解析：介词短语辨析。A和平地；B处于危险中；C轻松地；D负债；句意：用信用卡美国人花的钱比他们挣的还要多，所以他们总是负债。