过去完成时

旁白 neutral

By the time I arrived at the party , everyone had already left

我到达派对的时候，大家都已经离开了。

旁白 neutral

She had finished her homework before she watched TV

她在看电视之前已经完成了作业。

旁白 neutral

When we got to the station , the train had already departed

当我们到达车站时，火车已经开走了。

旁白 neutral

He had read the book twice before he recommended it to me

在他把这本书推荐给我之前，他已经读过两遍了。

旁白 neutral

They had eaten dinner when I called them

我给他们打电话的时候，他们已经吃过晚饭了。

旁白 neutral

After she had studied for hours , she took a break

她学习了几个小时后，休息了一下。

旁白 neutral

The movie had started by the time we found our seats

我们找到座位的时候，电影已经开始了。

旁白 neutral

I realized I had forgotten my keys when I got to the door

当我走到门口时，我意识到我忘记带钥匙了。

旁白 neutral

Before he went on vacation , he had completed all his work

在他去度假之前，他已经完成了所有的工作。

旁白 neutral

I had lost my keys , so I couldn't open the door when I got home

我把钥匙弄丢了，所以回家时无法开门。