Câu hỏi: Although the staff did expand somewhat for the first century of its existence, the entire teaching staff consisted of the president and three or four tutors.

A. to and from

B. more or less

C. back and forth

D. side by side

Câu 1: Many plants and animal species are now on the _______ of extinction.

A. danger

B. border

C. margin

D. verge

Câu 2: 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 3: ______- is natural environment in which plant or animals live.

A. Ecology

B. Habitat

C. Extinction

D. Biodiversity

Câu 4: The SEA GAMES is a ____________ multi-sport event involving participants from the current 11 countries of Southeast Asia.

A. annual

B. biennial

C. triennial

D. quadrennial

Câu 5: When someone …………… a poem or other piece of writing, they say it aloud after they have learn it.

A. recites

B. takes part in

C. completes

D. complete

Câu 6: I missed the lessons yesterday so I have to___________ on work.

A. put up

B. catch up

C. work up

D. go with