Rewrite the sentences in the passive voice.
1) we found the magazine behind the sofa yesterday. -> the magazine was found behind the sofa yesterday.
2) they cut down thousands of trees every day.
3) alexander fleming discovered penicillin.
4) he dropped the vase yesterday.
5) they elected him a member of parliament.
6) they deliver milk every day.
7) leonardo da vinci painted the mona lisa.
8) the boy feeds the puppy every day.
9) chyngyz aitmatov wrote the white steamship.
10) he waters the plants every other day.