Solittle______aboutmathematicsthatthelecturewascomp

So little ______ about mathematics that the lecture was completely beyond me.

A. I know

B. I knew

C. did I know

D. do I know

正确答案：C
本题考查倒装句的用法当否定词位于句前时句子应用倒装句式因句子的时态是一般过去时故选C