Câu hỏi:

The most important thing is to keep yourself occupied.

A. relaxed

B. comfortable

C. possessive

D. busy

Câu 1:

The shop assistant was totally bewildered by the customer’s behavior.

A. disgusted

B. puzzled

C. angry

D. upset

Câu 2:

His career in the illicit drug trade ended with the police raid this morning.

A. elicited

B. irregular

C. secret

D. illegal

Câu 3:

The notice should be put in the most conspicuous place so that all the students can be well-informed.

A. easily seen

B. beautiful

C. popular

D. suspicious

Câu 4:

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 5:

I cannot understand why she did that, it really doesn’t add up.

A. doesn’t calculate

B. isn’t mathematics

C. C. doesn’t make sense

D. D. makes the wrong addition

Câu 6:

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