The big earthquake in Taiwan took place in( ).A,the 1990s' B,1990s c,the 1990s D,a 1990's

C 是唯一正确的选项.
1.要定冠词,故排除 B 和 D.
2.要或不要那一撇 (') 均可.故 the 1990s 正确.但保留时,那一撇 (') 应置于 s 之前,即应是 the 1990's,而不是 the 1990s' ,故 A 错.