1.The secretary finished the report last night => The report was finished by the secretary last night.
2.Sam sent a gift to his father => A gift was sent to Sam's father by him.
3.Tom wrote his report on his way to work => Tom's report was written by him on his way to work.
4.I bought this house last year => This house was bought last year.
5.He lost his newspapers yesterday => His newspapers were lost by hom yesterday.
6.I brought my girlfriend to the party yesterday => My girlfriend was brought by me to the party yesterday.
7.Last year Mrs Nina taught me both English and Science
=> Last year, my both English and Science was taught by Mrs.Nina
8.She broke my laptop => My laptop was broken by her.
9.I sent my chirdren to summer camp => My children was sent to to summer camp by me.
10.She caught the thief => The thief was caught by her.