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
B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。