Câu hỏi: We only have ...... hour to complete the test.

A. a

B. an

C. x

D. the

Câu 1: Quick! Someone call ....... police. I need help right now.

A. a

B. an

C. the

D. x

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

A. a

B. an

C. the

D. x

Câu 3: Do you like ........ my wedding dress?

A. a

B. an

C. the

D. x

Câu 4: Do you like ........ my new glasses?

A. a

B. an

C. the

D. x

Câu 5: Are they .......... students?

A. a

B. an

C. x

D. the

Câu 6: All work had to be done by ...... hand when there were no modern machines.

A. an

B. the

C. x

D. a