单项选择题

______is known to us all, the earth moves around the sun.

A．Because
B．For
C．So
D．As
<上一题 目录 下一题>
热门 试题

单项选择题
But for my classmates' help, I ______the work in time.
A．did not finish
B．could not finish
C．will not finish
D．would not have finished
单项选择题
We have a desperate need ______practice strict economy in every department.
A．to
B．of
C．for
D．about
相关试题