Not until her dark glasses she was a famous film star.
A. did she take off, I realized
B. she took off, did I realize
C. did she take off, did I realize
D. she took off, I realized
网友回答
A. did she take off, I realized
(答案→)B. she took off, did I realize
C. did she take off, did I realize
D. she took off, I realized
解析：句意：直到她摘下墨镜，我才意识到她是一位著名的电影明星。Not until引导的状语从句位于句首时，主句部分需部分倒装。