问题补充:
It was not until the entrance exams were in sight that that I had so many books to cover and so many exercises to finish.
A. I realized
B. did I realize
C. had I realized
D. I had realized
答案:
(答案→)A. I realized
B. did I realize
C. had I realized
D. I had realized
解析:此句是I didn realize that I had so many books to cover and so many exercises to finish until the entrance exams were in sight.的强调句。not until…in sight位于强调结构中,realize就变成肯定,用过去时。