Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions
Not until I got on the taxi to the airport that I realized I had left my passport at home
A. that I realized
B. that I had left
C. at home
D. got on
A
Cấu trúc đảo ngữ nhấn mạnh: Not until + mốc thời gian/mệnh đề quá khứ + did/could + S + V không chia. A -> did I realize