单项选择题

（）from space, our earth, with water covering 70% of its surface, appears as a "blue planet"

A．Seeing
B．To be seen
C．Seen
D．Having seen

<上一题 目录 下一题>
热门 试题

单项选择题
I understand you are third year students（）in economics.

A．majored
B．to major
C．major
D．majoring
单项选择题
（）a major disaster will get us to realize that we can't go on destroying the rain forests of the world.

A．Anything but
B．Nothing but
C．But that
D．Everything but
相关试题