Câu hỏi: ______- is natural environment in which plant or animals live.

A. Ecology

B. Habitat

C. Extinction

D. Biodiversity

Câu 1: With the strong support of their countrymen, the Vietnamese athletes competed in ___________ spirits.

A. big

B. strong

C. high

D. lot

Câu 2: Many plants and animal species are now on the _______ of extinction.

A. danger

B. border

C. margin

D. verge

Câu 3: We must start a …………. for illiteracy eradication immediately

A. contest

B. company

C. champion

D. campaign

Câu 4: The computer has had an enormous _________ on the way we work.

A. alteration

B. change

C. impression

D. influence

Câu 5: Deserts often include _________ and rocky surface.

A. oil

B. water

C. sand

D. trees

Câu 6: Each nation has many people who voluntarily take care of others.

A. bring along

B. get on with

C. keep up with

D. look after