问题
选择题
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
答案
答案：D
考查倒装句。Only的倒装有两个条件，首先only放在句首，其次后面要强调状语。本句两个条件都满足了。Only放在句首强调了条件状语从句，所以后面使用倒装句。