Câu hỏi:

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:

Carpets from countries such as Persia and Afghanistan often fetch high prices in the United States.

A. Artifacts

B. Pottery

C. Rugs

D. Textiles

Câu 2:

Because Jack defaulted on his loan, the bank took him to court.

A. failed to pay

B. paid in full

C. had a bad personality

D. was paid much money

Câu 3:

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

Câu 4:

He has sold his house and has no job and so now he has next to nothing.

A. he is unemployed

B. he has a few things

C. he has almost no money

D. he has nothing at all

Câu 5:

I clearly remember talking to him in a chance meeting last summer.

A. unplanned

B. deliberate

C. accidental

D. unintentional

Câu 6:

The US troops are using much more sophisticated weapons in the Far East.

A. expensive

B. B: simple and easy to use

C. C: complicated

D. difficult to operate