They did the work carefully

Passive voice
1.They did the work carefully
2.People should cansider it carefully
3.Ann isn’t writting any letter
4.You can’t see him now
5.Has the police found him in the forest?
6.Are your parents going to buy a new car?
7.Lan’s mother had taken her to the park
8.Smoke hasn’t fillect the roo
Giúp mình với ạ!!!!!!!