You don’t try to work hard. You will fail in the exam.
A. Unless you don’t try to work hard, you will fail in the exam.
B. Unless you try to work hard, you won’t fail in the exam.
C. Unless you try to work hard, you will fail in the exam.
D. Unless do you try to work hard, you will fail in the exam.
Đáp án đúng là: C
Dịch: Bạn không cố gắng học chăm chỉ. Bạn sẽ trượt kỳ thi.
Although old-age pensions have risen considerably, they haven’t kept pace with the cost of living.