Câu hỏi: The systems caused by ingestion of a harmful chemical must be counteracted within minutes in order to avoid permanent damage to the kidneys and other vital organs.

A. alleviated

B. increased

C. distributed

D. summed up

Câu 1: All classifications of human societies and cultures are arbitrary.

A. useful

B. haphazard

C. insufficient

D. ambiguous

Câu 2: The twins look so much alike that no one can tell them apart.

A. distinguish between them

B. point out with them

C. spoil them

D. pick them out

Câu 3: 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 4: It was inevitable that the smaller company should merge with the larger one.

A. vital

B. unnecessary

C. urgent

D. unavoidable

Câu 5: The government is not prepared to tolerate this situation any longer.

A. look down on

B. put up with

C. take away from

D. give onto

Câu 6: 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