They were late for the meeting because of the heavy snow.
A. If it snowed heavily, they would be late for the meeting.
B. Had it not snowed heavily, they would have been late for the meeting
C. But for the heavy snaow, they wouldn't have been late for the meeting.
D. If it didn't snow heavily, they wouldn't be late for the meeting.
Đáp án C
Dịch nghĩa: Họ đến buổi meeting muộn vì tuyết rơi nặng.
A. Nếu tuyết rơi nặng, họ sẽ đến buổi meeting muộn.
B. Nếu tuyết không rơi nặng, họ đã đến buổi meeting muộn.
C. Nếu không vì tuyết rơi nặng, họ đã không đến buổi meeting muộn.
D. Nếu tuyết không rơi nặng, họ sẽ không đến buổi meeting muộn.
Xét theo nghĩa thì đáp án A, C và D đều đúng. Tuy nhiên, ở câu gốc sử dụng thì quá khứ (sự việc đã xảy ra trong quá khứ) nên câu điều kiện phải dùng loại 3.
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