补全句子
1. I__________________________ the job has been filled.
十分抱歉, 那个工作已经有人做了。
2. Most of the people __________________________ were my old friends.
大多数被邀请参加会议的人是我的老朋友。
3. They required him __________________________.
他们要求他保持沉默。
4. It was so excellent an exhibition__________________________ .
展览那么棒,以至于我去看了好几次。
5. Mr. Li __________________________ in today's program.
李先生将今天日程的变化通知了史密斯先生。