将下列句子改成被动语态

将下列句子改成被动语态
1 we found some jewls in a box
2 the teacher is keeping the pupils at school for a revision
3 James has left a parcel for you
4 you must finish the article before Friday
5 They will not paint the house again next year
6 They promised Mary a new doll for he birthday
7 I have told the children many times not to skate on the pond
8 where did he tramslate the story
9 we had to repair our TV set
10 Do they take good care of the sick
11 They company has paid the workers very handsome wages
12 They showed me the room where they lived
答的好再加10分噢=3=英语好的大大快出现吧=0=明天的英语作业啊~