A huge tree crashed through the roof and broke my bed, _____ in the room, I would have been killed.
Chọn đáp án B
I didn't know you were asleep. Otherwise, I_____ in the room, I would have been killed.
If only David had been a bit ore careful, _____ have been all right.
If you_____ to my advice in the first place, you wouldn't be in this mess right now.