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 must wear uniform when going to school, ______?

• A. A. don't they
• B. B. need they
• C. C. needn't you
• D. D. needn't they

Must chỉ sự cần thiết thì khi thành lập hỏi đuôi ta dùng needn't