问题
选择题
Only when he met the girl his aunt introduced to him ____ that he had seen her before. [ ]
A. he realized
B. he did realize
C. realized he
D. did he realize
答案
答案：D
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Only when he met the girl his aunt introduced to him ____ that he had seen her before. [ ]
A. he realized
B. he did realize
C. realized he
D. did he realize
答案：D