Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
We arrived at airport. We realized our passports were still at home.
A. It was until we arrived at the airport that we realize our passports were still at home
B. We arrived at the airport and realized that our passports are still at home
C. Not until had we arrived at the airport, we realized our passports were still at home
D. Not until we arrived at the airport, did we realize that our passports were still at home
Đáp án D.
Cấu trúc đảo ngữ: với not until đứng đầu câu thì thực hiện đảo ngữ ở vế sau.
Not until + MĐ/ trạng ngữ chỉ thời gian + trợ động từ + S + V: Mãi cho đến … thì …