Câu hỏi: Birds can fly in ........ sky.

A. an

B. the

C. x

D. a

Câu 1: ......... Hyde Park is a very large park in central London.

A. a

B. an

C. x

D. the

Câu 2: Canada is one of ......... biggest countries in the world.

A. a

B. an

C. the

D. x

Câu 3: I want to introduce you to Sharon. She is ........ very nice person.

A. a

B. an

C. the

D. x

Câu 4: She needs  ........ water. She is really thirsty.

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: He is ........ English.

A. a

B. an

C. x

D. the