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

Câu 1: 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

The US troops are using much more sophisticated weapons in the Far East.
A. expensive B. complicated C. simple and easy to use D. difficult to operate

The International Organizations are going to be in a temporary way in the country.
A. soak B. permanent C. complicated D. guess

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