Câu hỏi: 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

Câu 1: ______- is natural environment in which plant or animals live.

A. Ecology

B. Habitat

C. Extinction

D. Biodiversity

Câu 2: A ___________ buffalo is the 22nd South East Asian Games Mascot because Vietnam is an agricultural country.

A. bronze

B. golden

C. silver

D. yellowish

Câu 3: The boy waved his hands to his mother, who was standing at the school gate, to ………….. her attention.

A. attract

B. pull

C. follow

D. tempt

Câu 4: Do you know how many countries __________ part in the sporting event?

A. take

B. make

C. have

D. do

Câu 5: Reading ___________ an integral role in enhancing knowledge and relaxing.

A. has

B. holds

C. takes

D. plays

Câu 6: Many plants and animal species are now on the _______ of extinction.

A. danger

B. border

C. margin

D. verge