单项选择题

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

A. I knew
B. do I know
C. did I know
D. have I known

<上一题 目录 下一题>
热门 试题

单项选择题
So many representatives（）, the conference had to be put off.

A. were absent
B. to be absent
C. being absent
D. had been absent
单项选择题
In fact, I would rather have left for the countryside （）at home.

A. by staying
B. than staying
C. than to stay
D. than have stayed
相关试题