Câu hỏi: The journalist refused to disclose the sourse of his information.

A. open

B. reveal

C. shut

D. conceal

Câu 1: Did anyone acknowledge responsibility for the outbreak of the fire?

A. inquire about

B. accept

C. report

D. find out

Câu 2: “It’s no use talking to me about metaphysics. It’s a closed book to me.”

A. a subject that I don’t understand

B. a theme that I like to discuss

C. a book that is never opened

D. an object that I really love

Câu 3: The teacher gave some suggestions on what would come out for the examination.

A. symptoms

B. demonstrations

C. effects

D. hints

Câu 4: An international medical conference initiated by Davison resulted in the birth of the League of Red Cross Societies in 1991.

A. treated

B. dedicated

C. helped

D. started

Câu 5: My parents’ warnings didn’t deter me from choosing the job of my dreams.

A. influence

B. discourage

C. reassure

D. inspire

Câu 6: 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