Câu hỏi: 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 1: How many countries took part in the first World Cup?

A. interested

B. participated

C. competed

D. cooperated

Câu 2: We should........all the electric appliances when leaving our room.

A. turn of

B. turn on

C. turn up

D. turn off

Câu 3: The 'ao dai' is the...............dress of Vietnamese women.

A. beautiful

B. traditional

C. casual

D. baggy

Câu 4: Mathematics and Literature are..............subject in high schools.

A. adding

B. compulsory

C. optional

D. religious

Câu 5: Few businesses are flourishing in the present economic climate.

A. growing well

B. setting up

C. closing down

D. taking off

Câu 6: Silence of the Lambs is a..............film. It makes the audience scared.

A. disaster

B. science fiction

C. action

D. horror