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

A. interested

B. participated

C. competed

D. cooperated

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: 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

Câu 3: Mathematics and Literature are..............subject in high schools.

A. adding

B. compulsory

C. optional

D. religious

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: Some whales migrate into warm waters to bear their.............

A. young 

B. diets

C. calves

D. young whales

Câu 6: This National Park....over 200 square kilometres of rainforest.

A. contains

B. hold

C. gets 

D. covers