摘要：( ) ---- 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
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-What were you doing when I called you at 8 o'clock yesterday?
-I _________ the violin at that time.
-I _________ the violin at that time.
[ ]
A. play
B. is playing
C. played
D. was playing
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B. is playing
C. played
D. was playing
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