Mark the letter A, B, C or D on your answer sheet to indicate the correct answer that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one
Trả lời câu hỏi dưới đây:
He said that the plane had already left and that I…………………an hour earlier.
Should have done: một việc lẽ ra nên làm trong quá khứ nhưng lại không làm