If he had been more careful, he ________. A. won’t fall B. wouldn’t fall C. wouldn’t have fallen D. would haven’t fallenĐoạn văn29/105If he had been more careful, he ________. A. won’t fall B. wouldn’t fall C. wouldn’t have fallen D. would haven’t fallenwon’t fall wouldn’t fallwouldn’t have fallenwould haven’t fallenGiải thíchChọn đáp án C