Not until that day ____ the importance of good manners in a job interview.
选择一项：
a. did I realize 解析：【C】直到那一天，我才意识到在面试的时候，举止得体是重要的。本题考查倒装结构。当not until位于句首时，句子需要倒装，故选C。
b. I have realized
c. I realized
d. will I realize