填空题

There are many theories about the beginning of drama in ancient Greece. The one most widely accepted today is (47) on the assumption that drama (48) from ritual. People might wonder the relationship between these two things. However, the argument for this view goes as follows.
In the beginning, human beings viewed the (49) forces of the word—even seasonal changes — as unpredictable, and they sought through various means to control these feared powers. Those (50) which appeared to bring the desired results were then (51) and repeated until they hardened into fixed rituals. Though it is simple to describe the process, they believe, the actual happening might last long. (52) stories arose which explained or veiled the (53) of the rites.
As time passed, some rituals were abandoned, but the stories, later called myths, (54) and provided material for art and drama. Those who believe that drama came from ritual also argue that those rites contained the seed of theater (55) music, dance, and masks were almost always used. Furthermore, a suitable site had to be provided for (56) and there was clear division between the "acting area" and "auditorium". In addition, there were performers, and, since considerable importance was attached to avoiding mistakes in the enactment of rites, religious leaders usually assumed that task.

• A) evolvedI) singing
• B) becauseJ) persisted
• C) Eventually K) based
• D) natural L) measures
• E) mysteries M) effectiveness
• F) stopped N) Firstly
• G) questions O) retained
• H) performances