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.    

They are studying pronunciation with Mr Brown, ___?

• A. A. are they
• B. B. aren’t they
• C. C. do they
• D. D. don’t they

câu chính ở dạng khẳng định => tag question ở dạng phủ định