Нужно переделать в пассивный залог

1)They sent him well-written reports before the deadline.
2)Managers give orders and their subordinates carry these orders on.
3)They will send Nick to Moscow next week.
4)He gave the definitions of management in the 19th century.
5)Have they finished this meeting?
6)She is preparing the annual report.
7)They will build up customer loyalty by gaining their trust.
8)Many students have attended that lecture on Economics.
9)They always connect their main problem with competition.
10)She is holding a meeting in the next room.