Câu hỏi:

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 1:

The most important thing is to keep yourself occupied.

A. relaxed

B. comfortable

C. possessive

D. busy

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:

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

Câu 4:

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 5:

She is always diplomatic when she deals with angry students.

A. strict

B. outspoken

C. firm

D. tactful

Câu 6:

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

A. unplanned

B. deliberate

C. accidental

D. unintentional