I became more and more excited, trying to work out Mom was taking us on holiday.
A. where was it that
B. it was where that
C. where it was that
D. was it where that
网友回答
A. where was it that
B. it was where that
(答案→)C. where it was that
D. was it where that
解析：考查强调句。名词性从句中疑问词where与强调句构成的结构为where it was that，故选C。