Câu hỏi: Mathematics and Literature are..............subject in high schools.

A. adding

B. compulsory

C. optional

D. religious

Câu 1: The existence of different kinds of animals and plants which make a balanced environment is called........

A. biodiversity

B. rubbish

C. challenge

D. maintain

Câu 2: He’s really delighted with his new CD player.

A. please

B. angry

C. entertained

D. annoyed

Câu 3: How many countries took part in the first World Cup?

A. interested

B. participated

C. competed

D. cooperated

Câu 4: Van Mieu was a place to........the most brilliant scholars of the nation.

A. remember

B. memorialize

C. certify

D. impress

Câu 5: I can't hear what you are saying. Can you................the radio?

A. turn on

B. turn off

C. turn up

Câu 6: A country which exports a lot of rice is called a(n)........country.

A. rice-export 

B. exporting-rice

C. export-rice

D. rice-exporting