问题描述：
while listening to pop music,___
While listening to pop music,____
A.she felt asleep
B.the light went out
C.someone knocked at the door
D.and she couldn't help laughing
While listening to pop music,____
A.she felt asleep
B.the light went out
C.someone knocked at the door
D.and she couldn't help laughing
问题解答：
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