Human beings can exist without water and air.
Anh văn - Lớp 11
Do you know exactly number of Siberian tigers in China?
Anh văn - Lớp 11
The people in our village are leading a life.
Anh văn - Lớp 11
Human beings are changing the environment all respects.
Anh văn - Lớp 11
Air pollution interferes our body’s ability to process oxygen.
Anh văn - Lớp 11
I personally think that it is easy to understand time is relative.
Anh văn - Lớp 11