7、现在完成时 1）很幸运，下雨前我们已经到家了
Luckily, we had got home before it began to rain
2）张华说他的笔记本丢了
Zhang Hua said he had lost his notebook
3）他曾告诉过我，会议两点钟开
可是当我到了以后，我还得等到两点半
He had told me that the meeting was at 2, but when I arrived I had to wait till 2:30
4）他在这里住了两三天，才觉得没有什么拘束（feel at home）
When he had stayed here for two or three days, he began to feel at home
8、过去完成进行时 （1）形式：had been + 动词的现在分词
（2）用法：表示一直持续到过去某个时间的行为动作，此行为动作或刚结束、或还没结束（可以从上下文看出）
这一时态经常与一般过去时一起使用
例如： When he came in, I had been trying to repair the TV for a couple of hours
他进来的时候，我一直在努力修理电视机好几个小时了 The roads were dangerous
It had been raining for two whole days
雨一直下了两整天
They were tired because they had been digging since dawn
他们累了，因为从天亮开始他们就一直在挖
The boy was delighted with the new mountain bike
He had been hoping
