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.

Question 4: This is _____ only discount I can offer you.

• A. Ø
• B. one
• C. an
• D. the

Đáp án D
-Cụm từ: This is the first / the only / the last
Dịch nghĩa: Đây là lần giảm giá duy nhất tôi có thế giúp anh.