You don’t try to work hard. You will fail in the e...

Câu hỏi: 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.