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: 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 2: The teacher gave some suggestions on what would come out for the examination.

A. symptoms

B. demonstrations

C. effects

D. hints

Câu 3: At last, we succeeded in persuading those boys and girls to join our picnic.

A. At the end

B. In the end 

C. Lastly

D. Endlessly

Câu 4: My parents’ warnings didn’t deter me from choosing the job of my dreams.

A. influence

B. discourage

C. reassure

D. inspire

Câu 5: The situation seems to be changing minute by minute.

A. again and again

B. time after time

C. very rapidly

D. from time to time

Câu 6: Childbearing is the women's most wonderful role.

A. Giving birth to a baby

B. Bring up a child

C. Educating a child

D. Having no child