Câu hỏi: Professor Berg was very interested in the diversity of cultures all over the world.

A. variety

B. changes

C. conservation

D. number

Câu 1: When we went to the airport to see her off, we had a traffic jam.

A. say good bye to her

B. meet her

C. take care of her

D. look for her

Câu 2: Did anyone acknowledge responsibility for the outbreak of the fire?

A. inquire about

B. accept

C. report

D. find out

Câu 3: Around 150 B.C. the Greek astronomer Hipparchus developed a system to classify stars according to brightness.

A. record

B. shine

C. categorize

D. diversify

Câu 4: The use of lasers in surgery has become relatively commonplace in recent years.

A. comparatively

B. relevantly

C. absolutely

D. almost

Câu 5: The augmentation in the population has created a fuel shortage.

A. increase

B. necesity

C. demand

D. decrease

Câu 6: I am sure that they will be sacked on the spot.

A. employed

B. hired

C. given

D. fired