Only after the woman had her own child, _____ how difficult it was to be a mother.
A. did she realize
B. realized she
C. does she realize
D. she realized
A
考查倒裝句式。only+時間狀語從句放句首時，用部分倒裝。句意“只有在那個婦女有了孩子之后，她才意識到做媽媽是多么不容易�！辈糠值寡b就是把do/ does/ did/can/will等提到句首，排除B、D；因為時態(tài)是一般過去時，排除C。故選A。
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