(2013·合肥模拟)All the economists are working on the financial crisis can be prevented, which has caused a huge loss throughout the world.
A. how
B. when
C. that
D. why
网友回答
A. how
B. when
C. that
D. why
解析:选A。考查宾语从句。句意: 所有的经济学家都致力于如何预防这场金融危机, 它对整个世界造成了巨大的损失。根据句意可知选A。