问题补充：
American fathers more than twice the amount of time with their children than they used to in years past, due to a sweeping new trend called unemployment.
A. were spending
B. spent
C. are spending
D. have spent
答案：
A. were spending
B. spent
(答案→)C. are spending
D. have spent
解析：考查时态：句意：美国的父亲们用在陪他们孩子身上的时间比之过去的几年多了两倍，因为一个刚刚兴起的名字“失业”。根据句意较之“ used to in years past”可见当前这种状态正在发生着，故选择现在进行式，答案为C.
