Câu hỏi: Mai always plays ........ piano whenever she has free time.

A. a

B. an

C. the

D. Ø

Câu 1: She used to have ..... cat and  ......... dog but ........... dog died.

A. a - a - a

B. a - a - the

C. the - a - the

D. Ø - Ø - the

Câu 2: Do you know  ......... man who is waiting for the bus over there?

A. a

B. a

C. the

D. Ø

Câu 3: I like studying  ......... Maths best.

A. a

B. an

C. the

D. Ø

Câu 4: It takes me ........ hour to finish my work.

A. a

B. an

C. the

D. Ø

Câu 5: I often have ............ breakfast at 6:00 pm and ........... lunch at 11:00 pm.

A. the - the

B. a - the

C. a - a

D. Ø - Ø

Câu 6: Mel's mother is in ........ hospital, so we went to visit her last night.

A. a

B. Ø

C. the

D. an