1．I saw him in the street yesterday.
昨天我在街上看见他了。
2．When I was a teenager, I played table tennis almost every day.
当我十几岁时，我几乎每天都打乒乓球。
3．She wanted to know when we were starting this task.
她想知道我们什么时候开始这项任务。
4．She was always thinking of others.
她老是想着别人。
5．I had been at the bus stop for 20 minutes when a bus finally came.
当公共汽车终于来到的时候，我在车站已等了20分钟。
6．He had learned English for a few years before he went to the United States.
在去美国之前，他已学习了几年英语。
