中原工学院 / 大学英语(1)
_ _ _ _ _ _ from space, our earth, with water covering over 70% of its surface, appears as a “blue planet:”
A、Seeing
B、Having seen
C、To see
D、Seen
A、Seeing
B、Having seen
C、To see
D、Seen
参考答案:
佳题速递: