I didn’t know you were coming, so I didn’t wait for you.
A. If I had known you were coming, I wouldn’t have waited for you.
B. I would have waited for you if I knew you were coming.
C. If I had know you were coming, I would wait for you.
D. Had I known you were coming, I would have waited for you.
Giải bởi qa.haylamdo.com
Đáp án D
Câu điều kiện loại 3: If S had PII, S would have PII => Dạng đảo ngữ: Had S PII, S would have PII Chỉ một giả định không có thật trong quá khứ.
Unless we protect the environment, our life will be badly affected.
“Leave my house now or I’ll call the police!” shouted the lady to the man.
No sooner had she put the telephone down than her boss rang back.
“I’ll call you as soon as I arrive at the airport,” he said to me.
Peter told us about his leaving the school. He did it on his arrival at the meeting.
Had she read the reference books, she would have been able to finish the test.
The young girl has great experience of nursing. She has worked as a hospital volunteer for years.
She had only just begun to speak when people started interrupting.
People think that traffic congestion in the downtown area is due to the increasing number of private cars.
The new restaurant looks good. However, it seems to have few customers.
Tim graduated with a good degree. He joined the ranks of the unemployed.
