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

A. take

B. make

C. have

D. do

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

A. danger

B. border

C. margin

D. verge

Câu 4: 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 5: Some of the participating schools have also decided to use green cleaning products, which are safer since they do not ……. harmful chemicals into the environment.

A. release

B. expose

C. compound

D. deplete

Câu 6: Deserts often include _________ and rocky surface.

A. oil

B. water

C. sand

D. trees