I DIDN’T PAY ATTENTION TO THE TEACHER. I FAILED TO UNDERSTAND THE LES...

câu 40: - Đề thi HK2 Tiếng Anh 12 năm 2017 – 2018 trường Yên Lạc 2 – Vĩnh Phúc -
Tiếng Anh Đề thi HK2 Tiếng Anh 12 năm 2017 – 2018 trường Yên Lạc 2 – Vĩnh Phúc -
Câu 40: I didn’t pay attention to the teacher. I failed to understand the lesson. A. I would have understood the lesson if I had paid attention to the teacher. B. Although I paid attention to the teacher, I failed to understand the lesson. C. I would have understood the lesson if I had failed to pay attention to the teacher. D. Unless I failed to understand the lesson, I would pay attention to the teacher. ---