Câu hỏi: UFOs mean ................flying objects.

A. unknown

B. unidentified

C. unable

D. unimaginary

Câu 1: I can't hear what you are saying. Can you................the radio?

A. turn on

B. turn off

C. turn up

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: Yesterday a hurricane hit the................of Vung Tau City.

A. coaster

B. coast

C. coasting

D. coastal

Câu 4: 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 5: They often go to that...............to pray.

A. market

B. hotel

C. hostel

D. shrine

Câu 6: Some whales migrate into warm waters to bear their.............

A. young 

B. diets

C. calves

D. young whales