I didn’t pay attention to the teacher. I failed to understand the lesson.
A.A.
Although I paid attention to the teacher, I failed to understand the lesson.
B.B.
I would have understood the lesson if I had failed to pay attention to the teacher.
C.C.
I would have understood the lesson if I had paid attention to the teacher.
D.D.
Unless I failed to understand the lesson, I would pay attention to the teacher.
Đáp án và lời giải
Đáp án:C
Lời giải:
C. Tôi sẽ hiểu bài nếu tôi chú ý đến giáo viên.