----I didn’t realize how popular the restaurant was until I made a reservation the other day.
----I beg your pardon, but when ?
A. was you realized it
B. it was that you realized it
C. you realized it
D. was it that you realized it
网友回答
A. was you realized it
B. it was that you realized it
C. you realized it
(答案→)D. was it that you realized it
解析：
试题分析:考查疑问句。根据问号可知此句需用一般疑问句语序，排除B、C选项；而A选项语法错误，D选项是强调句型，故正确答案是D。句意：---直到前几天预订桌位我才意识到这家饭店是多么受欢迎。---请再说一遍，你什么时候意识到的这一点？