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: The journalist refused to disclose the sourse of his information.

A. open

B. reveal

C. shut

D. conceal

Câu 2: S. Mayo Hospital in New Orleans was so named in recognition of Dr. Mayo’s outstanding humanitarianism.

A. unpopular

B. widespread

C. remarkable

D. charitable

Câu 3: If desired, garnish your plate with parsley, bell pepper rings or other vegetables.

A. decorate

B. replace

C. associate

D. provide

Câu 4: This quartet of extraodinarily talented musicians generated a phenomenal number of pieces that won gold records.

A. irresponsible

B. incompetent

C. stupid

D. crazy

Câu 5: The related publications are far too numerous to list individually.

A. much

B. legion

C. few

D. full

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

A. employed

B. hired

C. given

D. fired