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

A. danger

B. border

C. margin

D. verge

Câu 1: Do you know how many countries __________ part in the sporting event?

A. take

B. make

C. have

D. do

Câu 2: 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 3: _____________ is a film or TV program presenting the facts about a person or event.

A. Biography

B. Horror films

C. Detective books

D. Documentary

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

A. alteration

B. change

C. impression

D. influence

Câu 5: Billy, come and give me a hand with cooking.

A. help

B. prepared

C. be busy

D. attempt

Câu 6: Whenever problems come up, we discuss them frankly and find solutions quickly.

A. happen

B. encounter

C. arrive 

D. clean