Not until the man i，n black took off his dark glasses that he was the famous film star.
A. did I realize
B. I realized
C. was I realized
D. I have realized
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(答案→)A. did I realize
B. I realized
C. was I realized
D. I have realized
解析：考查倒装句。Not until放在句首时，后面的主句应该使用部分倒装的形式。句意：直到那个穿黑色衣服的人摘下墨镜，我才意识到他是那个著名的电影明星！