Câu hỏi: Quick! Someone call _____ police. I need help right now.

A. a

B. an

C. the

D. x

Câu 1: The largest landmass is divided into two "continents" along _____ Ural mountains.

A. an

B. the

C. x

D. a

Câu 2: Can you play _______ piano?

A. a

B. an

C. the

D. x

Câu 3: Birds can fly in _________ sky.

A. an

B. the

C. x

D. a

Câu 4: What _____ day we are having today!

A. an

B. the

C. x

D. a

Câu 5: Lisa met one of her old friends on his way _____ home from Vancouver.

A. a

B. an

C. the

D. x

Câu 6: Do you like _______ my new glasses?

A. a

B. an

C. the

D. x