Mark the letter A, B, C, or D on your answer sheet to indicate the cor

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.    

What do you know ________  him? 

• A. A. on
• B. B. about
• C. C. with
• D. D. for

know about: biết về
Tạm dịch: Bạn biết gì về anh ấy?