Câu hỏi: Jennifer tasted ........ birthday cake her mother had made.

A. a

B. an

C. the

D. x

Câu 1: ...... book you ordered .......... last week is now in stock.

A. the/  X

B. a/  the

C. X/ an

D. X/ the

Câu 2: We need to protect ....... environment from pollution.

A. some

B. a

C. an

D. the

Câu 3: ......... people who live in  ..... glass houses shouldn’t throw stones.

A. the/  X

B. the/ the

C. X/  X

D. X/   the

Câu 4: The Mississippi river is in ........ United States of America.

A. a

B. an

C. the

D. x

Câu 5: We can finish the rest of the bread for ......... breakfast.

A. a

B. an

C. the

D. x

Câu 6: The children have ........ new teacher called Mr. Green.

A. a

B. an

C. the

D. x