._______,some young people began to perform hip-pop in public.A.In late 1990s B.In the late 1990 C.In the 1990’s D.In th
问题描述：
._______,some young people began to perform hip-pop in public.A.In late 1990s B.In the late 1990 C.In the 1990’s D.In the late 1990s
答
答案D
必须有定冠词the,而且年代的复数直接加-s,而不是所有格那样的撇-s（'s）.