If I ________ that Brian had to get up early, I would have woken him up.

If I ________ that Brian had to get up early, I would have woken him up.
A. know
B. knew
C. had known
D. will know
 

Ngo Duc Anh

New member
Đáp án: C
Giải thích: câu điều kiện loại 3
Dịch: Nếu tôi biết Brian phải dậy sớm, tôi đã đánh thức anh ấy.