I have been invited to a wedding 14 February. (Miễn phí)

C. on              

Đáp án chính xác

Thousands of acres of forest are being cut down every year and the ________of many animals are being destroyed.

A. natural resources       

B. natural habitats   

C. ways of life         

D. living surroundings

Environmental pollution is becoming an__________ serious problem that needs to be taken care of as soon as possible

A. increasingly

B. increasing

C. increase

D. increased

Tìm và sửa lỗi sai:

Ha Long Bay is one of the most beautiful natural wonder in the world.

A. is

B. the most

C. natural

D. wonder

Tìm từ đồng nghĩa với từ gạch chân:

Air pollution is a consequence of fossil fuel burning by motor vehicles, factories, aircraft and rockets.

A. product

B. example

C. harm

D. result

There's has been a steady rise in the average temperature around the planet over the last hundred years or so, and the majority of scientists put it _______ to human activity.

A. down

B. back

C. up

D. across

Many of the world's largest cities are _______ and some are permanently covered by a __________.

A. heavily polluted - polluted cloud

B. heavy pollution - polluted cloud

C. heavy pollution - cloud of pollution

D. heavily polluted - cloud of pollution