GMAT
Although early soap operas were aired first on evening radio in the 1920s, moving to the daytime hours in the 1930s when the evening schedule became crowded with comedians and variety shows.
Although early soap operas were first aired on evening radio in the 1920s, they were moved to the daytime hours in the 1930s when the evening schedule became crowded with comedians and variety shows.
题目基本信息