Câu hỏi: ........... morning, a stranger knocked at my door.

A. x

B. a

C. the

D. one

Câu 1: A lot of businessmen and businesswomen agree that ........  knowledge of English is a must in ....... international trade today.

A. the, the

B. the, an

C. Ø , the

D. a, Ø

Câu 2: Do you know ...............Vietnamese word for "penguin"?

A. a

B. the

C. an

D. x

Câu 3: .......  Republic of Panama lies between ......... Pacific Ocean and ............ Caribbean Sea.

A. Ø, Ø, Ø

B. The, the, the

C. The, Ø,Ø

D. Ø, the, Ø

Câu 4: Jasmine is ........... most diligent of the five.

A. an

B. x

C. the

D. a

Câu 5: A sailor is .. person who works on a ship.

A. one

B. x

C. a

D. the

Câu 6: The minister returned from Rome by ...... ship.

A. the

B. x

C. a

D. one