Câu hỏi:

It was very difficult to understand what he was saying about the noise of the traffic.

A. pick up

B. make up

C. turn out

D. make out

Câu 1:

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

A. elicited

B. irregular

C. secret

D. illegal

Câu 2:

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 3:

The most important thing is to keep yourself occupied.

A. relaxed

B. comfortable

C. possessive

D. busy

Câu 4:

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 5:

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 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