单项选择题

I'm sure it won't be long before people are living and working in ______ space.

A．/
B．the
C．a
D．an
<上一题 目录 下一题>
热门 试题

单项选择题
Roentgen won ______ 1901 Nobel Prize.
A．/
B．the
C．a
D．an
单项选择题
They got some valuable ______ from the night watchman.
A．informations
B．piece of information
C．information
D．pieces of informations
相关试题