1. The exam was taken by her last year
2. Rice has been eaten by my mother
3. An English book will be bought by the man
4. Taxes are collected by the government
5. I was sometimes offered a job by the manager
6. a new technique in dealing with air pollution is being improved by us
7. the lesson has been understood by the students
8. Your application letter must be written by you using ink, not pencil
9. the school regulations must be obeyed by the students
10. I am going to be given a present by my father next week

Thank me with the brainlest :)