had left是什么时态
had left是一般过去时。
I was disappointed to find that they had left already.
我发现他们已经离开了，觉得很失望。
All the criticism had left her feeling totally deflated.
所有这些批评使她彻底失去了信心。
Most of the occupants had left before the fire broke out.
大多数人在火灾发生之前已经离开。
I was forced to take a taxi because the last bus had left.
最后一班公共汽车已经开走，所以我只好坐了一辆出租汽车。
He had left the movement because it had abandoned its centrist policies.
他离开了这场已放弃其中间派政策的运动。