单项选择题

______ of the burden of two bags, the balloon climbed up and drifted to the North.

A．Freed
B．To be freed
C．Freeing
D．To free
<上一题 目录 下一题>
热门 试题

单项选择题
There is a real possibility that these animals could be frightened, ______ a sudden loud noise.
A．there having been
B．there was
C．being there
D．should there be
单项选择题
It ______ every day so far this month.
A．has rained
B．rains
C．rained
D．is raining
相关试题