将下列句子改为被动句(英语)求速度将下列句子改为被动句1.The emperor invented tea a long time ago.2.We found some jewels in a box.3.The teacher keeps the pupils at school for a revision.4You must finish the article before Friday.5They will paint the house again next year.

1. Tea was invented by the emperor a long time ago.

2. Some jewels were found in a box by us.

3. The pupils was kept at school for revision by the teacher.

4. The article must be finished on you before Friday.

5. The house will be painted again on them  next year.

1. Tea was invented by the emperor a long time ago.
2. Some jewels were found in a box.
3. The pupils are kept at school for a revision by the teacher.
4. The article must be finished before Friday.
5. The house will be painted again next year.

很高兴能够在这里回答你的问题,
1.The emperor invented tea a long time ago.
Tea was invented a long time ago by the emperor .
2.We found some jewels in a box.
Some jewels were found in a box by us.
3.The teacher keeps the pupils at school for a revision.
The pupils are kept at school for a revision by the teacher.
4You must finish the article before Friday.
The article must be finishe before Friday by you.
5They will paint the house again next year.
The house will be painted again next year by them.