改被动语态：1、He has put them into the box.2、They are treating the patient.3、The teacher gave us a lot of homework.【两种

改被动语态：1、He has put them into the box.2、They are treating the patient.3、The teacher gave us a lot of homework.【两种
改被动语态：1、He has put them into the box.2、They are treating the patient.
3、The teacher gave us a lot of homework.【两种

改被动语态：1、He has put them into the box.2、They are treating the patient.3、The teacher gave us a lot of homework.【两种
1.They have been put into the box by him
2.The patient is being treated by them
3.We were given a lot of homework by the teacher.
A lot of homework was given to us by the teacher.

你好！

如下：
1、He has put them into the box.
----They have been put into the box by him.

2、They are treating the patient.
----The patient are being treated by them.

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你好！

如下：
1、He has put them into the box.
----They have been put into the box by him.

2、They are treating the patient.
----The patient are being treated by them.

3、The teacher gave us a lot of homework.
-----We were given a lot of homework by the teacher.
-----A lot of homework is given to us by the teacher.

希望能够帮到你！

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they were put into the box
the patient are treated by them
A lot of homework were given to us by the teacher
we were given a lot of homework by the teacher

1.They have been put into the box by him.
2.The patient is being treated by them
3.A lot of homework is given to us by the teacher.
We are given a lot of homework by the teacher.

你好，您想要的正确答案是：
1.They are put into the box by him.
2.The patient are treated by them.
3.A lot of homework is given to us by the teacher./We are given a lot of homework by the teacher.
...

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你好，您想要的正确答案是：
1.They are put into the box by him.
2.The patient are treated by them.
3.A lot of homework is given to us by the teacher./We are given a lot of homework by the teacher.

祝你学习进步，更上一层楼！ (*^__^*)
不明白的再问哟，请及时采纳，多谢！

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1、They have been put into the box by him.

2、The patient are being treated by them.

3、We were given a lot of homework by the teacher.
A lot of homework is given to us by the teacher.

They have been put into the box by him.
The patient are being treated by them.
A lot of homework was given to us by the teacher.
we were given a lot of homework by the teacher .