题目内容：

[-B54] Only when I left my parents for Italy ___ how much i loved them.
A.I realized
B.I had realized
C.had I realized
D.did I realize
翻译并分析

优质解答

又如：1 She came only after supper------把only after supper提前就必须倒装：
Only after supper did she come.
2 She will come only when she is free.-------把only when she is free.提前就能倒装：
only when she is free will she come.