Đáp án: is doing
Giải thích: Diễn tả hành động đang xảy ra tại thời điểm nói => hiện tại tiếp diễn
Dịch: Hãy giúp bạn của bạn, Nam. Cô ấy đang làm bài tập về nhà.
Write a paragraph (about 100 words) to talk about benefit of sharing household chores in the family.
In order to stay healthy, make sure you have a balanced intake of vitamins and minerals.
Because of a high birthrate and considered immigration, the United States population in the late nineteenth century increased tremendously from 31 million in 1860 to 76 million in 1900.
This is the first time I've ever painted a mural over graffiti.
=> I have never ______________________________.
I didn't buy it because I didn't have enough money.
=> If ______________________________.
Mr. Green (teach) _____ English in this school since he (graduate) _____ from the university in 1986.