Câu hỏi: Relaxation therapy teaches one not to fret over small problems.

A. worry about

B. get angry about

C. get involved in

D. look for

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: 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 3: 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 4: Primary education in the United States is compulsory

A. free of charge

B. required

C. excellent

D. easy

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: Jan took many snapshots while on vacation in Europe.

A. notes

B. gifts

C. photos

D. clothes