Câu hỏi: 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 6

A. serious     

B. more serious     

C. the most serious      

D. serious than

Câu 1:

Why/ not/ we/ sing/ English song?

A. Why not we sing an English song?

B. Why not we sing a English song?

C. Why don't we sing a English song?

D. Why don't we sing an English song?

Câu 2:

You should put rubbish in the recycling ___________.

A. bin      

B. sea      

C. soil      

D. air

Câu 3:

Why don’t we __________ old school objects for candies?

A. swap      

B. raise      

C. wrap      

D. recycle

Câu 4:

Do you know what ___________ water pollution?

A. caused      

B. causing      

C. to cause      

D. causes

Câu 5:

If you turn _________ the lights when you don’t use it, you will save electricity.

A. on      

B. off      

C. up     

D. down

Câu 6: Choose the letter A, B, C or D the word that has the underlined part different from others.

A. A. effect      

B. pollution      

C. invite      

D. charity