Start at once or you will be late.
A. Unless you start immediately, you won’t be late.
B. You would be late if you didn’t start at once.
C. If you don’t start immediately, you will be late.
D. If you started at once, you wouldn’t be late.
Đáp án C
Bắt đầu ngay lập tức hoặc là bạn sẽ bị muộn.
Cấu trúc: Vo/ Don’t Vo or S + will + Vo => viết lại câu điều kiện loại 1
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