问题
选择题
It wasn’t until then _______ their marriage was breaking up because they had little in common.
A．did I realize
B．that I realized
C．had I realize
D．when I realized
答案
Ｂ
这题考查强调句：It is/was not until… that…“直到。。。才”，句意是：直到那个时候他们才意识到因为缺乏共同语言，他们的婚姻快解体了。选B。