◎ 题干
-What were you doing when I called you at 8 o'clock yesterday?
-I _________ the violin at that time.
[     ]
A. play
B. is playing
C. played
D. was playing
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“-What were you doing when I called you at 8 o'clock yesterday?-I _________ the violin at that time.[ ]A. playB. is playingC. playedD. was playing…”主要考查了你对  【过去进行时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。