单项选择题

I do not know where (could he have) (gone) (so early) (in the) morning.

A. could he have
B. gone
C. so early
D. in the

<上一题目录下一题>

热门试题

单项选择题

A bone marrow test, (what) (involves) extracting fluid from the marrow, (maybe) necessary (for diagnosing) leukemi()

A. what
B. involves
C. maybe
D. for diagnosing

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

相关试题