Câu hỏi: You will be able to see the wonders of........: oceans, rivers, mountains.

A. nature  

B. structures

C. buildings

D. constructions

Câu 1: The 'ao dai' is the...............dress of Vietnamese women.

A. beautiful

B. traditional

C. casual

D. baggy

Câu 2: Some whales migrate into warm waters to bear their.............

A. young 

B. diets

C. calves

D. young whales

Câu 3: Chaplin's movies captivated.........throughout the world.

A. scientists

B. musicians

C. directors

D. audiences

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

A. carried

B. taken

C. flowed

D. beside

Câu 5: UFOs mean ................flying objects.

A. unknown

B. unidentified

C. unable

D. unimaginary

Câu 6: The existence of different kinds of animals and plants which make a balanced environment is called........

A. biodiversity

B. rubbish

C. challenge

D. maintain