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: The collapse of the stock market in 1929 signaled the beginning of the Depression.

A. debt

B. rebirth

C. rise

D. failure

Câu 2: He made one last futile effort to convince her and left home.

A. favorable

B. difficult

C. ineffectual

D. firm

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

A. vital

B. unnecessary

C. urgent

D. unavoidable

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: I’m becoming increasingly absent-minded. Last week, I locked myself out of my house twice.

A. being considerate of things

B. remembering to do right things

C. forgetful of one’s past

D. often forgetting things

Câu 6: The purpose of this survey is to determine students’ attitudes toward love and marriage.

A. find out

B. develop

C. concern

D. build