单项选择题

It is extremely urgent that they ______ from the mountain before dark.

A. must be rescued
B. should rescue
C. can be rescued
D. be rescued
<上一题 目录 下一题>
热门 试题

单项选择题
Children who are over- protected by their parents may become ______.
A. hurt
B. damaged
C. spoiled
D. harmed
单项选择题
We have made up our minds and nothing can prevent us ______ on the experiment.
A. from carried
B. from being carried
C. carrying
D. to carry
相关试题