问题
选择题
Was it not until you began to work —— how much time you had wasted?
A．did you realize
B．that you realized
C．did you not realize
D．that you didn’t realize
答案
答案：B
B解析：该题为It was not until…that的强调句型一般【疑问句结构，that部分为陈述结构。如果not until引导的时间状语位于句首，则主句必须采用部分倒装形式，且用肯定结构。但本题中not until时间状语被强调，情形不同，主句仍为陈述语序。故选B。