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

A. do

B. take

C. rush

D. join

Câu 1: He has been very interested in doing research on _______ since he was at high school.

A. biology

B. biological

C. biologist

D. biologically

Câu 2: Can you tell me who is responsible ______ checking passports?

A. to

B. in

C. about

D. for

Câu 3: Whenever problems come up, we discuss them frankly and find solutions quickly.

A. happen

B. encounter

C. arrive

D. clean

Câu 4: Ann is very ______. She takes part in numerous activities outside of school.

A. enjoyable

B. funny

C. outgoing

D. lively

Câu 5: Strong family ties provide us the love and _________ we need for a happy life.

A. secure

B. securing

C. security

D. securely

Câu 6: Steve is a good ________ man, completely devoted to his wife and kids.

A. free

B. hard

C. single

D. family