Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
The book would have been perfect ________ the ending.
A. had it not been for
B. it had not been for
C. it hadn't been for
D. hadn't it been for.
Đáp án A
Cấu trúc đảo ngữ câu ĐK loại III: Had it not been for something = if it hadn’t been for something = nếu không có cái gì Dịch câu: Quyển sách sẽ hoàn hảo nếu không có phần kết thúc đó.