With the dawn of space exploration, the notion that atmospheric conditions on Earth may be
unique in the solar system was strengthened.
A. outcome B. continuation C. beginning D. expansion

Roget's Thesaurus, a collection of English words and phrases, was originally arranged by the
ideas they express rather than by alphabetical order.
A. restricted B. as well as C. unless D. instead of

She is always diplomatic when she deals with angry students.
A. strict B. outspoken C. firm D. tactful

Around 150 B.C. the Greek astronomer Hipparchus developed a system to classify stars
according to brightness.
A. record B. shine C. categorize D. diversify

Tourists today flock to see the two falls that actually constitute Niagara falls.
A.come without knowing what they will see
B.come in large numbers
C.come out of boredom
D.come by plane

Ralph Nader was the most prominent leader of the U.S consumer protection movement.
A. casual B. significant C. promiscuous D. aggressive

He didn't bat an eyelid when he realized he failed the exam again.
A. wasn't happy B. didn't want to see C. didn't show surprise D. didn't care

The shop assistant was totally bewildered by the customer's behavior.
A. disgusted B. puzzled C. angry D. upset

Though many scientific breakthroughs have resulted from mishaps it has taken brilliant
thinkers to recognize their potential.
A. accidents B. misunderstandings C. incidentals D. misfortunes

Carpets from countries such as Persia and Afghanistan often fetch high prices in the United
States.
A. Artifacts B. Pottery C. Rugs D. Textiles