Câu hỏi: ............AIDS is .................. incurable disease.

A. the/  an

B. X/  an

C. the/  the

D. X/  the

Câu 1: It is estimated that about 640 women remain illiterate in ............ world, mostly in developing countries.

A. a

B. an

C. the

D. x

Câu 2: We had______ dinner in a restaurant.

A. a

B. an

C. x

D. the

Câu 3: ................. swimming is .................. good sport.

A. the/  X 

B. X/  a 

C. the/  the 

D. X/  the

Câu 4: There are billions of stars in ______ space.

A. a

B. an

C. x

D. the

Câu 5: ................United States is ...................world's biggest consumer of energy.

A. the/  X

B. X/  a

C. the/  the

D. X/  the

Câu 6: We often watch______ television.

A. the

B. a

C. an

D. x