Câu hỏi: ......... people who live in  ..... glass houses shouldn’t throw stones.

A. the/  X

B. the/ the

C. X/  X

D. X/   the

Câu 1: We need to protect ....... environment from pollution.

A. some

B. a

C. an

D. the

Câu 2: We often go to school by ........ bicycle.

A. some

B. a

C. an

D. the

Câu 3: ........ starts at seven o’clock.

A. School

B. A school

C. The school

D. The schools

Câu 4: ......... European expert was invited to speak to the committee.

A. a

B. an

C. the

D. x

Câu 5: Alex is in Boston studying for .... MBA.

A. a

B. an

C. the

D. x

Câu 6: We can finish the rest of the bread for ......... breakfast.

A. a

B. an

C. the

D. x