1.They were met by the young lady at the station
2.She was told a very interesting story by him
3.He was recognized as a genius by them
4.The young trees were watered by us yesterday
5.I was seen by John in the street
6.A new bridge will be built over the river by them
7.Paper had been made form the fibers of plants by them for many centuries
8.He had been invited by them to teach at Yale University
9.3000 words will have been learnt by Mary by the end of the year
10.A report about wildlife in China has being writing by them
11.The piano was playing by Lily at school at 5o'clock yesterday ofternoon