All the parents ----(listen) to the school choir at three o'clock then they went home.怎么填,为什么?
问题描述：
All the parents ----(listen) to the school choir at three o'clock then they went home.怎么填,
为什么?
答
“所有人的父母三点钟在学校礼堂听合唱团的演唱，然后他们就回家了。”
根据过去式went,知道动作发生在过去，所以空格处填' listened '
答
All the parents were listening to the school choir at three o'clock then they went home.
在【具体的三点钟at three o'clock 】那一时刻【正在做某事】
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