Câu hỏi: I clearly remember talking to him in a chance meeting last summer. (Mark the letter A, B, C, or D to indicate the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following questions.)

A. unplanned

B. deliberate

C. accidental

D. unintentional

Câu 1: Can you tell me who is responsible ______ checking passports?

A. to

B. in

C. about

D. for

Câu 2: _______ sure that you follow the instructions carefully.

A. Believe

B. Try

C. Do

D. Make

Câu 3: With greatly increased workloads, everyone is _______ pressure now.

A. under

B. above

C. upon

D. out of

Câu 4: Doctors are supposed to _______ responsibility for human life.

A. do

B. take

C. rush

D. join

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

A. biology

B. biological

C. biologist

D. biologically