Câu hỏi: Many doctors are still general practitioners, but the tendency is toward specialization in medicine.

A. rumor

B. trend

C. prejudice

D. security

Câu 1: The copperhead, a snake that strikes without warning, is considered more dangerous than the rattlesnake.

A. exquisite

B. sporadic

C. treacherous

D. aloof

Câu 2: The activists were accused of contaminating the minds of our young people.

A. providing healthy ideas

B. harming

C. nurturing

D. keeping in the dark

Câu 3: Primary education in the United States is compulsory

A. free of charge

B. required

C. excellent

D. easy

Câu 4: The fer-de-lance, a kind of viper, is one of the most poisonous snakes.

A. deadly

B. vicious

C. bad tasting

D. unhealthy

Câu 5: Though many scientific breakthroughs have resulted from mishaps, it has taken brilliant thinkers to recognize their potential.

A. misunderstandings

B. accidents

C. misfortunes

D. incidentals

Câu 6: Peter didn’t mean to be disrespectful to his teacher. He just couldn’t control his temper.

A. Showing lack of trust

B. showing impolite behavior

C. Showing nervousness

D. showing lack of attention