----- Nội dung dịch tự động từ ảnh ----- 9. The man decided to devote himself full-time to social work. A. bring B. help C. work D. dedicate 20. Although the child started to protest, her stubborn insistence again paid off. A. was successful B. failed C. wore off D. went on Mark the letter A, B, c orD on your answer sheet to indicate the word(s) OPPOSITE in meaning to underlined word(s) in each of the following questions. 21. She called in my office this morning and we had a collective chat. A. secret B. friendly C. personal D. public 22. He tried to start the car but he was unable to keep it running. A. stop B. left C. ignite D. drive