Câu hỏi: Can you play ..... piano?

A. a

B. an

C. the

D. x

Câu 1: There was  .......... piano in the corner of the room.

A. a

B. an

C. x

D. the

Câu 2: Are they .......... students?

A. a

B. an

C. x

D. the

Câu 3: Canada is one of ......... biggest countries in the world.

A. a

B. an

C. the

D. x

Câu 4: Can you give me ............ little more information about the house?

A. a

B. an

C. the

D. x

Câu 5: I want to have ....... apple for ........ lunch.

A. a, the

B. an, Ø

C. the, Ø

D. Ø, Ø

Câu 6: Children usually begin to go to ........ school at ........ age of six.

A. the, the

B. a, a

C. Ø, the

D. the,  a