Câu hỏi: He has been very interested in doing research on _______ since he was at high school.

A. biology

B. biological

C. biologist

D. biologically

Câu 1: What are the _______ of that country? - I think it is some kinds of cheese and sauces.

A. drinks

B. beverages

C. grains

D. special dishes

Câu 2: Steve is a good ________ man, completely devoted to his wife and kids.

A. free

B. hard

C. single

D. family

Câu 3: Doctors are supposed to _______ responsibility for human life.

A. do

B. take

C. rush

D. join

Câu 4: According to the boss, John is the most _______ for the position of executive secretary.

A. supportive

B. caring

C. suitable

D. comfortable

Câu 5: Can you tell me who is responsible ______ checking passports?

A. to

B. in

C. about

D. for

Câu 6: Are you sure that boys are more _______ than girls?

A. act

B. active

C. action

D. activity