An army of bees were flying around.
问题描述：
An army of bees were flying around.
of were flying
为什么用这3个词?
答
这是过去进行时的简单例句.
of很好懂,an army of,字面翻是“一支由蜜蜂组成的军队”.
were flying,army是单数格但意思是复数,所以用be的复数形式,发生在过去,所以用过去式,就是were；were flying,表示动作在过去某个时间段里持续发生.