Câu hỏi: Synthetic products are made from chemicals or artificial substances.

A. natural

B. made by machine

C. man-made 

D. unusual

Câu 1: Paid employment has doubtedly brought economic and social gains to many women.

A. independently

B. hardly

C. freely

D. certainly

Câu 2: Slavery was abolished in the US in the 19th century.

A. instituted

B. eradicated 

C. eliminated

D. required

Câu 3: Nutritionists believe that vitamins circumvent diseases.

A. defeat

B. nourish

C. help

D. treat

Câu 4: Doctors have been criticized for their indiscriminate use of antibiotics.

A. disciplined

B. selective

C. wholesale

D. unconscious

Câu 5: I can’t stand people who treat animals cruelly

A. cleverly

B. reasonably

C. gently

D. brutally

Câu 6: I take my hat off to all those people who worked hard to get the contract.

A. congratulate

B. unrespect

C. welcome

D. encourage