Câu 41: ________, I would have waited for you.
A. Unless I had known you were coming B. Unless I knew you were coming
C. If I knew you were coming D. If I had known you were coming
Bạn đang xem câu 41: - Đề thi thử THPT Quốc gia năm 2017 môn Tiếng Anh THPT Nguyễn Trãi, Yên Bái có đáp án (4)