这些句子1.we found somejewels in a box.2.the teacher is keeping

1.Some jewels were found in a box (by us).
2.The pupils are being kept at school for a revision (by the teacher).
3.A parcel has been left for you (by James).
4.The article must be finished before Friday (by you).
5.The house won't be painted again next year (by them).
6.A new doll was promised to Mary for her birthday (by them).
或：Mary was promised a new doll for her birthday (by them).
7.The children have been told many times not to skate on the pond (by us).
8.Where was the story translated (by him)?
9.Our TV set had to been repaired (by us).
10.I was shown the room where they lived (by them).
或：The room was shown to me where they lived (by them).
注：（ ）表示有时可以省略不写；
含有双宾语的句子,其被动句有两种变化形式.