I expected him to ask where ________, but the question never cam

I expected him to ask where ________, but the question never came up.
A、I study
B、do I study
C、I studied
D、did I study
【正确答案】：C
【题目解析】：宾语从句不需要用倒装，同时这里需要用过去式，因此选C。