Question

[Lê Quỳnh Anh]

Choose the letter A, B, C or D to complete the passage below

Air pollution is one of _________ (6) problems of the current time all over the world. There ___________ (7) a lot of reasons for this pollution. First of all, the release of air pollutants such as smog and solid materials cause air pollution and health issues ___________ (8) human. ___________ (9) dirty wastes in big cities are polluting the whole atmospheric air. Thirdly, motor vehicles are releasing polluted gases contributing to the air pollution. Finally, some natural ________ (10) like dust, soil particles, and natural gases are also the source of air pollution.

Question 7:

A. are

B. is

C. being

D. be

Answer 1

[Dương Hoàn Anh]

Chọn đáp án: A

Giải thích:

there are + Ns: có

Dịch: Có nhiều lý do cho sự ô nhiễm này