1) the famous lecturer was greeted by students warmly.
2) a huge plant in the town of N. was built by them.
3) the work must be finished by tomorrow.
4) when I fell ill, the doctor was sent by my mother.
5) the girl was looked everywhere by them.
6) the boy wasn't listened/heared by them.
7) the patients were looked by her well.
8) our address was asked by them.
9) these papers were looked through by my mother this morning.
10) english lessons will be given to my brother by him.