Câu hỏi: Many people become ..................because of the natural disaster every year.

A. homeland

B. homesick

C. homeless

D. homework

Câu 1: According to the weather..............it will be raining tonight.

A. forecast

B. forecaster

C. forecasted

D. forecasting

Câu 2: How many countries took part in the first World Cup?

A. interested

B. participated

C. competed

D. cooperated

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

A. adding

B. compulsory

C. optional

D. religious

Câu 4: You will be able to see the wonders of........: oceans, rivers, mountains.

A. nature  

B. structures

C. buildings

D. constructions

Câu 5: Some tiny organisms are..........along by the currents.

A. carried

B. taken

C. flowed

D. beside

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