(2012·天津卷)Only after Mary read her position the second time the spelling mistake.
A. she noticed
B. she has noticed
C. did she notice
D. does she notice
网友回答
A. she noticed
B. she has noticed
(答案→)C. did she notice
D. does she notice
解析：“only＋状语”位于句首，句子用部分倒装结构。选C