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.

You'd better brush your teeth twice a day, ______?

• A. A. wouldn't you
• B. B. hadn't I
• C. C . should I
• D. D. hadn't you

Khi thấy had/'d better ta chỉ cần mượn trợ động từ had để lập câu hỏi đuôi.