问题
选择题
Only when one leaves his homeland ______ how much he loves his motherland.
A．he will realize
B．will he realize
C．has he realized
D．he has realized
答案
答案：B
这题考查倒装句的用法：only+状语从句+主句（倒装句），因为when引导的时间状语从句是一般现在时，所以主句用将来时。选B。