Câu hỏi: ......... European expert was invited to speak to the committee.

A. a

B. an

C. the

D. x

Câu 1: It would help us if you gave ..... honest opinion.

A. a

B. an

C. the

D. x

Câu 2: There was .......... huge crowd of people outside the church.

A. a

B. an

C. the

D. x

Câu 3: The children have ........ new teacher called Mr. Green.

A. a

B. an

C. the

D. x

Câu 4: We need to protect ....... environment from pollution.

A. some

B. a

C. an

D. the

Câu 5: Their car does 150 miles ..... hour.

A. a

B. an

C. the

D. x

Câu 6: I  have two brothers: ...... older one is training to be ........ pilot with British Airways, ....... younger one is still at  ....... school.

A. The/  X/  the/  X

B. The/  a/  the/ X

C. an/  a/  the/  X

D. the/  the/  the/  X