Câu hỏi: Helen Keller, blind and deaf from an early age, developed her sense of smell so finely that she could identify friends by their personal odors.

A. classify

B. recognize

C. describe

D. communicate with

Câu 1: The teacher gave some suggestions on what could come out for the examination.

A. effects

B. symptoms

C. hints

D. demonstrations

Câu 2: The 1908 Siberian meteorite explosion brought about considerable depletion of the northern hemisphere's ozone layer.

A. was caused by

B. resulted in

C. brought back

D. was initiated by

Câu 3: He was fired because of his misconduct at the office party.

A. mistake

B. impropriety

C. condition

D. singing

Câu 4: He was asked to account for his presence at the scene of crime.

A. complain

B. exchange

C. explain

D. arrange

Câu 5: We watched as the plane disappeared behind the clouds.

A. melted

B. escaped

C. vanished 

D. perished

Câu 6: In most countries, compulsory military service does not apply to women.

A. superior

B. mandatory

C. beneficial

D. constructive