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

A. unknown

B. unidentified

C. unable

D. unimaginary

Câu 1: The main.........is played by Nicole Kidman.

A. actress

B. character

C. director

D. film maker

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 existence of different kinds of animals and plants which make a balanced environment is called........

A. biodiversity

B. rubbish

C. challenge

D. maintain

Câu 4: Some tiny organisms are..........along by the currents.

A. carried

B. taken

C. flowed

D. beside

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

A. coaster

B. coast

C. coasting

D. coastal