Câu hỏi: Oxygen plays a important role in maintaining live.

A. a

B. plays

C. role

D. live

Câu 1: The teacher together with his students have finished their project on time.

A. The

B. together 

C. have

D. their

Câu 2: A child of noble birth, his name was famous among the children in that school.

A. of

B. his name

C. among

D. in that

Câu 3: The Oxford English Dictionary is well known for including many different meanings of words and to give real examples.

A. well known

B. The 

C. meanings 

D. to give

Câu 4: The director, as well as his wife and two children, were injured in the accident.

A. the

B. well

C. were

D. in

Câu 5: The harder he tried, the worst he danced before the large audience.

A. before

B. the

C. worst

D. tried

Câu 6: My father asked me where had I gone the night before.

A. asked

B. the 

C. before

D. had I