1/The waste which is discharged from the factory has polluted the lake

2/ The  poinsoinous chemical waste has been dumped by the factory into the lake

3/ Industrial waste has been thrown by people into the lake

4/ The pollution in the lake has been by a ship caused

5/ Medical treatment has been received in many people

6/ The paddy fields have been replaced by the tall residential buildings

7/ More injured people have been taken into the hospitals

8/ The Earth's surface has been destroyed by the human activities

9/ Water pollution is caused by chemical waste ( has been discharged into the river )

10/ Households'waste has been dumped into the river

11/ Litter has been thrown on the ground by people

12/ water has been used by peole everyday

13/ This language is spoken by they as their mother tongue

14/ The geography of Asia is studied by we

15/ The biology lesson  was had in the afternoon

16/ A common interest inphootgraphy is shared by they

Viết lại câu ở dạng bị động

1, The lake has been polluted by the waste from the factory

2, Poisonous chemical waste has been dumped into the river by the factory

3, Industrial waste has been thrown into the lake 

4, The water in the lake has been polluted by the ship

5, Medical treatment has been received by many people

6, The paddy fields have been replaced by tall residential buildings

7, More injured people have been taken in by hospital

8, The Earth's surface is destroyed by human activities

9, Water pollution is caused by chemical waste 

10, Waste is dumped into the river by households

11, Litter is thrown on the ground

12, The water is used everyday

13, This language is spoken as their mother tongue

14, The geography of Asia was studied

15, A biology lesson was had by me this afternoon

16, A common interest was shared in photography