Last month a student from China joined our class. She came in, introduced herself, and began to talk about her country. She showed us where she was from on a map. While she was talking about her home town, the school bell suddenly rang.
- At midnight, we were still driving .
- Yesterday at this time, I was sitting at my desk at work.
- He was constantly talking. He annoyed everyone.
- I didn’t like them because they were always complaining.
Parallel actions to describe the atmosphere at a particular time in the past.
When I walked into the office, several people were busily typing, some were talking on the phones, the boss was yelling directions, and customers were waiting to be helped. One customer was yelling at a secretary and waving his hands. Others were complaining to each other about the bad service.