Only after Ann read her essay the second time the spelling mistake.
A. did she notice
B. she notice
C. does she notice
D. she has noticed
网友回答
(答案→)A. did she notice
B. she notice
C. does she notice
D. she has noticed
解析：句意：Ann在第二次读了自己写的文章之后，才注意到拼写错误。Only + 状语为于句首，句子用部分倒装，选A。