1. They answered the teacher's questions in turn.
2. He was put into prison many times. He is really hopeless.
3. It seems like a quarrel is going to break out.
4. How could people stood by when the accident happened?
5. I have been doing trade with this man for many years.
6. Not long after the marriage, the new wife started to mistreat her step doughter.
7. Although there are beautiful views here, she is low in spirit.