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

A.  from time to time

B. time after time

C. again and again

D. very rapidly

Câu 1: He had never experienced such discourtesy towards the president as it occurred at the annual meeting in May.

A. politeness

B. rudeness

C. measurement

D. encouragement

Câu 2: An Alzheimer patient’s incomprehensible ramblings will frequently upset family members, who may take the statements personally.

A. rude

B. personal

C. loud

D. unintelligible

Câu 3: All classifications of human societies and cultures are arbitrary.

A. useful

B. haphazard

C. insufficient

D. ambiguous

Câu 4: The event, watched by millions of people all over the country, takes place annually.

A. sometimes

B. once every year

C. regularly

D. smoothly

Câu 5: Once in a while I visit my grandparents on the farm and stay there for some days.

A. Regularly

B. Sometimes

C. Usually

D. Rarely

Câu 6: In the twentieth century, drug markedly improved health throughout the world.

A. supposedly

B. noticeably

C. recently

D. consistently