Câu hỏi: Studies of climatology indicate that volcanic dust in the atmosphere may contribute to the onset of ice ages.

A. explain

B. insinuate

C. suggest

D. prove

Câu 1: He was fired because of his misconduct at the office party.

A. mistake

B. impropriety

C. condition

D. singing

Câu 2: I’ll take the new job whose salary is fantastic.

A. reasonable

B. acceptable

C. pretty high

D. wonderful

Câu 3: 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 4: The museum dismissed the curator after some of the oldest paintings were damaged.

A. artist

B. cleaner

C. guard

D. director

Câu 5: In Benjamin Franklin's almanac, he warns against making hasty decisions.

A. expensive

B. unhealthy

C. firm

D. quick

Câu 6: The teacher gave some suggestions on what could come out for the examination.

A. effects

B. symptoms

C. hints

D. demonstrations