Câu hỏi: 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 1: 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 2: Mounting evidence indicates that acid rain is damaging historic sites in Boston and Philadelphia.

A. Hanging

B. Tentative

C. Increasing

D. Irrefutable

Câu 3: Proximity to the court house makes an office building more valuable.

A. Interest in

B. Similarity to

C. Nearness to

D. Usefulness for

Câu 4: The copperhead, a snake that strikes without warning, is considered more dangerous than the rattlesnake.

A. exquisite

B. sporadic

C. treacherous

D. aloof

Câu 5: A multitude of people attended the fund-raising presentation in the mall.

A. small number

B. select group

C. huge crowd

D. large herd

Câu 6: 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