19. A

Vì ở đoạn văn ta thấy "More than two hundred years ago, the term environmental pollution was quite strange to people."

20. A

Đề: Trong những ngày trước kia, con người....

Ở đoạn văn ta thấy "They lived healthily" => Chọn A

21. D

Vì: ở đoạn văn ta thấy "Nowadays, the situation is different, people all over the world are worried about things that are happening to the environment" và "cars can cause pollution"

22. C

Vì: "Every body knows that motorbikes and cars can cause pollution and disease but no one want to travel on foot or by bike."

23. D

Vì: "Manufactures know that wastes from factories make water and soil polluted, but they don't want to spend a lot of their money on treating the wastes safely"

24. A

go on: tiếp tục

Chọn A vì: "Littering rubbish is bad for our health"

-tham khảo !

`19` `A`

`-` Dẫn chứng : More than `2` hundred years ago, the term environmental pollution was quite strange to people

`20` `A`

`-` Dẫn chứng : They lived healthily, drank pure water and breathed fresh air

`21` `D`

`-` Dẫn chứng : Nowadays, the situation is different, peple all over the world are worried about things that are happening to the environment

`22` `C`

`-` Dẫn chứng : Every body knows that motorbikes and cars can cause pollution and disease but no one want to travel on foot or by bike

`23` `D`

`-` Dẫn chứng : Manufactures know that wastes from factories make water and soil polluted, but they don't want to spend a lot of their money on treating the wastes safely

`24` `A`

`-` Dẫn chứng : Littering rubbish is bad for our health but no one want to spends time to burying in

`\text{@ TheFallen}`