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

A. some

B. a

C. an

D. the

Câu 1: The tomatoes are 99 pence .......... kilo.

A. a

B. an

C. the

D. x

Câu 2: I need ....... time to think about ........... offer you made me.

A. the/  the 

B. a/  the 

C. x/ an

D. a/ the

Câu 3: ......... European expert was invited to speak to the committee.

A. a

B. an

C. the

D. x

Câu 4: Ben has ........... terrible headache.

A. a

B. an

C. the

D. x

Câu 5: Dad turned on ...... radio to listen to ......... news.

A. a/ a

B. a/ the

C. the/ the

D. the/  a

Câu 6: ..... recipe for ......... success is  .......... hard work.

A. The/  X/  X

B. The/  a/  the

C. X/  a/  X 

D. X/  the/  X